Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
A CrMS-synchronized hormone sampling protocol is detailed in which progesterone, estradiol, and other reproductive hormones are drawn at cycle-phase-specific time points defined by the charted Peak Day rather than by fixed cycle day, producing a targeted hormone profile that accurately reflects luteal and follicular function. This Peak Day-referenced approach substantially improves the diagnostic sensitivity for luteal phase deficiency, follicular dysfunction, and other endocrine abnormalities that fixed-day sampling routinely misclassifies.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Infertility is not merely a reproductive inconvenience but frequently signals systemic or hormonal pathology — including polycystic ovarian disease, endometriosis, thyroid dysfunction, and immune abnormalities — each carrying independent health risks beyond failure to conceive. Identifying and treating these underlying conditions reduces long-term morbidity and reframes infertility evaluation as a form of preventive medicine rather than a terminal bypass decision.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Chronic pelvic pain and dysmenorrhea in reproductive-age women most commonly reflect undertreated endometriosis, adenomyosis, ovarian dysfunction, or pelvic adhesive disease rather than psychosomatic pathology. NaProTECHNOLOGY evaluates these symptoms through a structured diagnostic pathway integrating CrMS biomarker profiles, hormonal assays, and targeted laparoscopy, directing restorative surgical and medical interventions rather than suppressive hormonal therapy.
Hilgers TW et al., 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Compounding pharmacists prepare individualized hormone formulations — including HCG, progesterone, and thyroid preparations — that are central to NaProTECHNOLOGY treatment protocols, where standardized commercial doses are often inadequate for patient-specific needs. Collaborative prescribing between NaPro practitioners and licensed compounding pharmacists ensures consistent bioidentical formulation quality, dosing precision, and regulatory compliance within fertility and reproductive endocrine management.
Bone HealthReproductive EndocrinologyFertility AwarenessNaProTECHNOLOGY
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Chronic anovulation and progesterone or estradiol deficiency identified through CrMS charting represent periods of suboptimal bone accrual in women of reproductive age, because both estradiol and progesterone contribute to skeletal maintenance -- estradiol through suppression of osteoclast activity and progesterone through osteoblast stimulation. NaProTECHNOLOGY uses longitudinal CrMS records of ovulatory status and hormone profiles as a bone-health risk screen, guiding cycle-synchronized bioidentical hormone replacement to restore normal estrogen-progesterone balance and potentially mitigate progression toward osteoporosis in women with chronic cycle-based endocrine deficiencies.
Backman T et al., 2004·American journal of obstetrics and gynecology
This study was undertaken to evaluate the pregnancy rate with the levonorgestrel intrauterine system (LNG IUS) and to analyze the outcome of pregnancies with the LNG IUS in situ in regular use. Questionnaires from 17,360 users of the LNG IUS were analyzed. With the consent of women reporting pregnancy during the use of the LNG IUS, related hospital records were reviewed concerning the pregnancies. Originally 132 pregnancies were reported. Medical records were reviewed from 108 of these women. In 64 pregnancies, conception occurred with the LNG IUS in situ. Thirty-three pregnancies were ectopic. The 5-year cumulative pregnancy rate per 100 users was 0.5 and the 5-year Pearl rate was 0.11. Pregnancy with the LNG IUS in situ is rare. Ectopic pregnancies constitute 53% of all pregnancies. Typical pregnancy symptoms occur during pregnancies with the LNG IUS. The importance to counsel about the risk of pregnancy before insertion is emphasized.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Distal tubal occlusion — including hydrosalpinx, fimbrial agglutination, and peritubal adhesions — is a correctable cause of tubal-factor infertility amenable to salpingoneostomy, fimbrioplasty, and adhesiolysis under PEARS principles. Restoration of distal tubal patency and normal fimbrial architecture allows natural conception and avoids the bypassing of physiological fertilization that characterizes assisted reproductive technology.
Postpartum DepressionProgesterone and Mood DisordersNeuroactive Steroids and GABAHormone Withdrawal Etiology
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Postpartum depression in susceptible women is linked to abrupt postpartum progesterone withdrawal following the high-progesterone state of pregnancy, particularly in those with prior PMS, luteal phase defects, or recurrent miscarriage, and NaProTECHNOLOGY evaluates this through serum progesterone, thyroid function, and prolactin assessment in the postpartum period. Treatment uses bioidentical progesterone -- preferably intramuscular for reliable absorption -- with serum levels monitored every two weeks for dose titration, and once cycles resume, dosing is resynchronized to the CrMS Peak day; Hilgers reports no increase in congenital anomalies in over 2,000 progesterone-supported pregnancies in the Pope Paul VI Institute series.
InfertilityFemale Age and FecundabilityMale Age and FertilityProspective Fecundability Studies
Dunson DB et al., 2004·Obstetrics & Gynecology
To estimate the effects of aging on the percentage of outwardly healthy couples who are sterile (completely unable to conceive without assisted reproduction) or infertile (unable to conceive within a year of unprotected intercourse).
A prospective fecundability study was conducted in a sample of 782 couples recruited from 7 European centers for natural family planning. Women aged 18-40 years were eligible. Daily intercourse records were used to adjust for timing and frequency of intercourse when estimating the per-menstrual-cycle probability of conception. The number of menstrual cycles required to conceive a clinical pregnancy and the probability of sterility and infertility were derived from the estimated fecundability distributions for men and women of different ages.
Sterility was estimated at about 1%; this percent did not change with age. The percentage infertility was estimated at 8% for women aged 19-26 years, 13-14% for women aged 27-34 years and 18% for women aged 35-39 years. Starting in the late 30s, male age was an important factor, with the percentage failing to conceive within 12 cycles increasing from an estimated 18-28% between ages 35 and 40 years. The estimated percentage of infertile couples that would be able to conceive after an additional 12 cycles of trying varied from 43-63% depending on age.
Increased infertility in older couples is attributable primarily to declines in fertility rates rather than to absolute sterility. Many infertile couples will conceive if they try for an additional year.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Serum estradiol and progesterone assays vary substantially across laboratories because of differences in antibody specificity, calibration standards, detection platforms, and quality-control practices, meaning that a value within one laboratory's generic reference range may represent a clinically significant deficiency when interpreted against NaPro Peak-day-specific norms. NaProTECHNOLOGY requires consistent use of a single reference laboratory and interpretation relative to cycle-phase-specific NaPro standards rather than broad lab-generated reference intervals, to avoid missing subtle follicular or luteal phase defects that standard reporting would classify as normal.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
CrMS charting features -- Peak day definition, pre-Peak mucus quality and duration, post-Peak phase length, and premenstrual spotting -- are systematically compared against sonographic and endocrine findings to demonstrate that prospective cycle observations reliably identify specific ovulation disorder categories. This clinical validation shows that the CrMS chart functions as a non-invasive biomarker map capable of directing targeted ultrasound and hormonal investigation, and that treatment guided by the classification improves ovulatory and fertility outcomes.
NaProTECHNOLOGYFamily Practice ModelFertilityCare Practitioner and OB/GYN ConsultCreighton Model Charting and Timed Hormone Profiling
Hilgers TW et al., 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Family physicians trained in NaProTECHNOLOGY serve as primary coordinators of medical management — prescribing targeted hormone support, monitoring biomarker trends, and triaging surgical referrals — within a collaborative care model. Their longitudinal relationship with patients and ability to integrate reproductive medicine into whole-person primary care is a structural advantage of the NaProTECHNOLOGY delivery system over specialist-only models.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Management of pregnancies complicated by lethal fetal anomalies is addressed within an ethical framework that provides perinatal palliative care, parental support, and medical management without recourse to induced abortion. The chapter outlines clinical protocols for continuing care that respect fetal life while attending to maternal physical and psychological wellbeing through delivery and bereavement.
Laparoscopic laser adhesiolysis techniqueKTP vs Nd:YAG laser selection by tissue typePelvic adhesive disease surgical managementAdhesion prevention with barrier patch
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Laser adhesiolysis protocols address peritubal, periovarian, and cul-de-sac adhesions using CO2 laser energy applied under direct near-contact visualization, with attention to underlying anatomy and vascular proximity. Restoration of normal adnexal mobility and tubo-ovarian relationships is a prerequisite for improved cycle-based fertility after surgical NaProTECHNOLOGY intervention.
Creighton Model FertilityCare Systemcervical mucus biomarkers and ovulation timingNaProTECHNOLOGY origins and biomarker foundationFertilityCare practitioner certification and allied-health education
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
The Creighton Model FertilityCare System (CrMS) is introduced as a standardized, scientifically grounded method for observing and recording cervical mucus biomarkers and bleeding patterns across the menstrual cycle. Its development from earlier natural family planning methods into a fully systematized fertility monitoring tool is traced, establishing the CrMS as the observational substrate for all subsequent NaProTECHNOLOGY medical applications.
NaProTECHNOLOGYCPRT and CERTProgesterone and Estradiol SupportPeak Day Ovulation Timing
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Cooperative progesterone and estrogen replacement therapy administers bioidentical hormones in precise synchrony with the woman's CrMS-identified Peak day -- beginning progesterone at P+2 or P+3 and continuing through the luteal phase -- to augment deficient corpus luteum output rather than override the cycle with suppressive dosing. Serial serum progesterone across post-Peak days guides dose titration, and the approach is applied to luteal phase deficiency, recurrent miscarriage, premenstrual syndrome, and postpartum depression while preserving ovulatory function and fertility.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
A photographic atlas documents the intraoperative appearance of endometriosis, adhesions, polycystic ovarian morphology, tubal pathology, and uterine anomalies as encountered during near-contact laparoscopy. Standardized visual reference supports consistent surgical classification, intraoperative decision-making, and communication of findings across the NaProTECHNOLOGY surgical team.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Selective hysterosalpingography combined with transcervical fallopian tube catheterization allows both precise diagnosis and non-surgical correction of proximal tubal occlusion, distinguishing true anatomical obstruction from tubal spasm or mucous plugging. In NaProTECHNOLOGY practice, this minimally invasive approach restores tubal patency without laparotomy, preserving natural conception potential in appropriately selected patients.
CREIGHTON MODEL System: Case Management MethodologyFertility Awareness: Chart Interpretation and CorrectionFertilityCare Practitioner Training and SupervisionCervical Mucus Observation: Lubrication and Premenstrual Mucus Distinction
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
A systematic framework for managing patient cases within the CrMS-NaProTECHNOLOGY system is presented, addressing how FCPs and medical consultants collaborate to identify abnormal chart patterns, initiate medical referral, and coordinate ongoing care. Structured case management is the operational bridge between fertility monitoring and clinical intervention, ensuring that biomarker observations are translated into timely diagnostic and therapeutic action.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Physiological and psychological stress disrupts hypothalamic GnRH pulsatility via CRH-cortisol pathways, producing downstream impairments in LH and FSH secretion that manifest as anovulation, delayed ovulation, follicular phase prolongation, or luteal phase deficiency -- all of which are documented cycle-by-cycle on the CrMS chart. NaProTECHNOLOGY addresses stress-induced HPO axis dysfunction by identifying the specific cycle-level disorder through charting and targeted hormone profiling, then applying cycle-appropriate ovulation induction and cooperative hormone support alongside correction of the underlying physical or psychological stressor.
3-D and 4-D obstetric ultrasoundfetal development by gestational agediagnostic ultrasound safety in pregnancyprenatal parental bonding
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Three-dimensional ultrasound enables volumetric assessment of uterine architecture, endometrial morphology, and ovarian follicular dynamics with greater anatomical precision than conventional 2D imaging, facilitating detection of septate uteri, submucosal fibroids, and endometriotic lesions that affect implantation. Integration of 3D ultrasound into NaProTECHNOLOGY evaluation protocols enhances the pre-treatment structural workup and informs targeted surgical planning for uterine factor infertility.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Amenorrhea and anovulation represent a spectrum of hypothalamic, pituitary, ovarian, and end-organ etiologies that must be differentiated through systematic hormonal and anatomical evaluation before treatment is initiated. NaProTECHNOLOGY integrates CrMS mucus charting with targeted biochemical testing to identify the level of dysfunction and guide ovulation induction or hormonal restoration appropriate to the specific cause.
Fertility AwarenessDecision-Making FrameworkAchieving vs Avoiding PregnancyResponsible Parenthood and Catholic Teaching
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Clinical and instructional decision trees guide practitioners through the interpretation of chart findings and the selection of appropriate responses — ranging from continued observation to medical referral — based on pattern recognition and established CrMS criteria. Systematic decision-making protocols reduce practitioner variability, support evidence-based care, and define the threshold at which observed abnormalities warrant further NaProTECHNOLOGY medical evaluation.
NaProTECHNOLOGYInfertilityOvarian and Target Organ DysfunctionCervical Mucus
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Ovarian dysfunction — encompassing luteal insufficiency, abnormal folliculogenesis, and anovulation — is treated in NaProTECHNOLOGY with cycle-timed interventions including HCG trigger, progesterone supplementation, clomiphene, and thyroid optimization, guided by prospective CrMS charting rather than protocol-driven stimulation. This approach normalizes endogenous hormonal patterns rather than overriding them, preserving uterine receptivity and reducing multiple gestation risk.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Bowel endometriosis involving the rectosigmoid, appendix, and small intestine requires specialized resection and repair techniques that fall within the competency of a general surgeon collaborating with the NaProTECHNOLOGY surgical team. Addressing bowel involvement is essential to achieving complete excision of endometriotic disease, which underpins the PEARS philosophy of restoring normal pelvic anatomy and maximizing reproductive potential.
Annual report (Jahrbuch) of the Deutsches IVF-Register (DIR) for treatment year 2003. DIR is the German national IVF/ICSI registry, founded 1982 — the oldest continuously operating ART registry. Voluntary professional-society database with high de-facto coverage of German fertility centres. Reports cycles, transfers, pregnancies and clinical outcomes by treatment type (IVF, ICSI, frozen embryo transfer, donor). German-language registry document. Used as a Phase B historical-archive source for the ART Registry Comparison study (cross-registry classification by reporting completeness on 7 framework dimensions).
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Pelvic adhesions from prior infection, surgery, or endometriosis restrict tubal motility, occlude the fimbriae, and distort ovarian-tubal relationships, constituting a primary mechanical barrier to natural conception. Microsurgical adhesiolysis performed under NaProTECHNOLOGY protocols achieves tubal patency and restores anatomical relationships, enabling natural pregnancy in a substantial proportion of cases that would otherwise be directed to IVF.
adhesion prevention in reproductive surgeryanti-adhesion barrier comparisonmicrosurgical technique and hemostasisserosal edge-inversion closure
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Core microsurgical principles for adhesion prevention—continuous peritoneal irrigation, meticulous hemostasis, minimal thermal spread, avoidance of foreign material, and precise tissue approximation—are detailed as non-negotiable standards in every NaProTECHNOLOGY procedure. Postoperative adhesion formation is the primary cause of surgical failure in pelvic reconstruction, making preventive technique as important as the corrective intervention itself.
Infertility evaluationART outcome reporting methodologyConservative surgery vs IVF comparative effectivenessOvulatory defect diagnosis
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Conventional infertility care has shifted toward assisted reproductive technologies that bypass underlying pathology rather than diagnose and treat root causes, leaving a large proportion of couples with unresolved, correctable conditions. NaProTECHNOLOGY addresses this systemic deficiency by emphasizing standardized evaluation, cycle-based hormonal profiling, and targeted medical and surgical treatment before any bypass technology is considered.
NaProTechnology fertility consultation modelCouple-centered infertility evaluationCreighton Model charting in fertility diagnosisLive birth outcomes in NaProTechnology
Hilgers TW et al., 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Family physicians are optimally positioned to introduce NaProTECHNOLOGY to patients presenting with infertility, irregular cycles, or recurrent pregnancy loss during routine primary care, enabling early evaluation and restorative treatment before referral to subspecialists. Familiarity with CrMS charting interpretation, basic hormone panels timed to identified cycle phases, and the range of treatable NaPro diagnoses allows the family physician to substantially expand reproductive care at the primary care level.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Ovarian wedge resection reduces androgen-producing stromal tissue in women with polycystic ovary syndrome who have failed medical ovulation induction, restoring spontaneous or treatment-responsive ovulatory cycles. Within NaProTECHNOLOGY, the procedure is performed with precise tissue economy and anti-adhesion technique to preserve ovarian reserve while correcting the underlying hormonal dysfunction identified through CrMS biomarker monitoring.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Normal estradiol and progesterone reference ranges in NaProTECHNOLOGY are derived from fertile, ovulatory cycles with confirmed CrMS Peak days and sonographic ovulation, with blood sampling timed to Peak-anchored days (pre-ovulatory P-days for estradiol, P+3 through P+11 for luteal hormones) rather than to calendar cycle days. These day-specific normative values allow detection of subtle deficiencies -- such as a blunted progesterone rise at P+5 or inadequate pre-ovulatory estradiol -- that are clinically actionable for diagnosing follicular and luteal phase disorders but are invisible to standard mid-luteal or phase-independent reference intervals.
InfertilityMultifactorial DiagnosisCycle Classification and Hormonal CorrelationLuteinized Unruptured Follicle and Serial Ultrasound
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
NaProTECHNOLOGY applies the standardized biomarkers of the Creighton Model FertilityCare System to identify the specific pathophysiological causes of infertility in each couple, then directs targeted medical or surgical intervention against those causes. Published pregnancy rates demonstrate outcomes comparable to or exceeding IVF in many diagnostic categories, without the ethical, financial, or obstetric risks associated with assisted reproduction.
Fertility AwarenessCreighton Model FertilityCare SystemAchieving-Related Pregnancy RateDemographic Effectiveness Research
Hilgers TW et al., 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Pregnancy achievement rates among couples using the CrMS to target fertile days are analyzed by cycle type, reproductive history, and duration of use, demonstrating the system's capacity to accommodate irregular and abnormal cycles without reducing its fertility-targeting utility. These data are foundational to NaProTECHNOLOGY's application in infertility management, establishing that the CrMS identifies fertile windows even in subfertile populations with disrupted cycle parameters.
Ovarian cystsLuteinized unruptured follicleCreighton Model cycle chartingFunctional cyst hormonal therapy
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Ovarian cysts in NaProTECHNOLOGY are classified as functional (follicular cysts, luteinized unruptured follicle, corpus luteum cysts) or pathological (endometriomas, neoplasms) through serial cycle-timed transvaginal ultrasound correlated with CrMS Peak day observations and post-Peak progesterone and estradiol profiles. Management of functional cysts uses cooperative progesterone replacement and targeted HCG injections to normalize corpus luteum function and reduce cyst recurrence without contraceptive suppression, while pathological or persistent cysts are addressed through fertility-sparing laparoscopic surgery with anti-adhesion technique.
Fertility AwarenessCervical Mucus ScoringCreighton Model Cycle ClassificationBody Literacy
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
A quantitative taxonomy for classifying the cervical mucus cycle is established, using standardized descriptors for mucus type, quantity, consistency, and Peak Day timing to produce objectively comparable cycle profiles across patients and study populations. This classification system is indispensable to NaProTECHNOLOGY research and clinical correlation, as it enables the linkage of specific mucus pattern anomalies to underlying endocrine pathology.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
The CrMS charting system is explained in full, including the stamp-based notation for recording mucus characteristics, bleeding, and dry days on the standardized chart, and the conventions for identifying the Peak Day. Accurate chart reading is the foundational clinical skill for NaProTECHNOLOGY practitioners, as the chart provides the biomarker timeline against which hormone profiles and pathology are interpreted.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
The PEARS (Pelvic Endoscopic Adhesion-Related Surgery) procedure for peritoneal and ovarian endometriosis combines near-contact laser vaporization, adhesiolysis, and ovarian cystectomy under strict anti-adhesion protocols to achieve comprehensive disease eradication while preserving ovarian reserve. Outcomes data demonstrate superior fertility and pain resolution compared to incomplete surgical approaches, establishing PEARS as the operative standard within NaProTECHNOLOGY.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Uterine fibroids contribute to abnormal uterine bleeding, dysmenorrhea, recurrent pregnancy loss, and implantation failure, making myomectomy a central NaProTECHNOLOGY surgical intervention for women seeking conception. PEARS myomectomy technique prioritizes uterine preservation, meticulous layered closure of the myometrial defect, and hemostasis strategies that minimize adhesion formation and support subsequent pregnancy.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Extensive pelvic adhesions — often the sequela of prior surgeries, infection, or undertreated endometriosis — distort tubo-ovarian relationships and impair fertility through mechanical obstruction and altered pelvic microenvironment. PEARS adhesiolysis principles emphasize meticulous sharp dissection, copious irrigation, and anti-adhesion adjuncts to restore normal anatomy and optimize postoperative fertility outcomes.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Postoperative pelvic adhesions are a leading cause of secondary infertility, chronic pain, and bowel obstruction following gynecologic surgery, making adhesion prevention a primary surgical quality metric in NaProTECHNOLOGY. PEARS technique integrates continuous peritoneal irrigation, meticulous tissue handling, avoidance of foreign-body contamination, and selective use of barrier agents to minimize the fibrinous cascade that initiates adhesion formation.
Fertility AwarenessCreighton Model FertilityCare SystemContinuous Mucus DischargeEssential Sameness Pattern and Point of Change
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Women with persistent or continuous vaginal discharges — including those from chronic cervicitis, hormonal imbalance, or other gynecologic sources — present a distinct charting challenge, and this chapter provides CrMS-specific protocols for distinguishing pathologic discharge from fertile-quality cervical mucus. Correct identification is clinically critical because misclassification distorts cycle interpretation, effectiveness calculations, and the hormone-assessment timeline.
Reproductive EndocrinologyThyroid System DysfunctionReverse T3 DominanceBasal Body Temperature and Menstrual Cycle
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Both overt and subclinical thyroid dysfunction are recognized in NaProTECHNOLOGY as significant causes of cycle-level reproductive abnormalities -- including oligomenorrhea, anovulation, luteal phase deficiency, heavy bleeding, and recurrent early pregnancy loss -- detectable through CrMS charting before standard screening would prompt thyroid evaluation. The chapter advocates comprehensive thyroid assessment (TSH, free T4, free T3, and thyroid antibodies) with fertility-optimized reference thresholds in women presenting with cycle disorders or infertility, followed by reassessment of CrMS patterns and hormone profiles after thyroid correction to identify and treat any residual follicular or luteal phase defects.
Pregnancy Loss / Recurrent MiscarriageReproductive Endocrinology / Luteal Phase DeficiencyNaProTECHNOLOGY / CREIGHTON MODEL BiomarkersEndometriosis / Inflammatory Mechanisms / Trophoblast Toxicity
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Recurrent spontaneous abortion is examined through a systematic NaProTECHNOLOGY diagnostic framework that includes hormonal, anatomical, immunological, and infectious etiologies identified via CrMS cycle charting and targeted laboratory evaluation. Correcting underlying pathology—particularly luteal phase deficiency and uterine structural abnormalities—achieves live birth rates substantially higher than expectant management alone.