About This Page
This is a clinician-written, evidence-based guide aligned to the MCC Examination Objectives. It is structured by clinical presentation — the way the MCCQE tests and the way patients actually present. Management reflects current Canadian guidelines (CMA, CFPC, CPS). Always cross-reference with institutional protocols and clinical judgment.
The Bottom Line
- Infertility is usually failure to conceive after 12 months, or 6 months if female partner is age 35 or older.
- Evaluate both partners early; semen analysis is first-line.
- Core categories: ovulatory dysfunction, male factor, tubal factor, uterine factor, endometriosis, unexplained infertility, age-related decline.
- Expedite referral for age, amenorrhea, tubal disease, endometriosis, chemotherapy, recurrent loss, or abnormal semen.
- Preconception care is part of infertility care.
Approach to the Presentation
Take a couple-based reproductive and sexual history, assess cycle regularity, prior pregnancies, STIs/PID, surgery, endometriosis symptoms, medications, occupational exposures, erectile/ejaculatory function, and age.
Differential Diagnosis
| diagnosis | likelihood | key features | distinguishing test |
|---|---|---|---|
| Early Pregnancy / Ectopic | must-not-miss | Delayed menses, bleeding, pain, fertility treatment or tubal risk. | Pregnancy test. |
| Diminished Ovarian Reserve / POI | must-not-miss | Age-related decline, hot flushes, irregular cycles, chemotherapy/radiation. | FSH/estradiol, AMH/antral follicle count in fertility setting. |
| Severe Male Factor | must-not-miss | Cryptorchidism, mumps, varicocele, anabolic steroids/testosterone, chemotherapy. | Semen analysis repeated if abnormal. |
| Tubal Factor | must-not-miss | Prior PID, ectopic, pelvic surgery, endometriosis. | Hysterosalpingography or tubal patency test. |
| PCOS / Ovulatory Dysfunction | common | Oligomenorrhoea, hirsutism, acne, insulin resistance. | Ovulation assessment and androgen testing. |
| Endometriosis | common | Dysmenorrhoea, deep dyspareunia, dyschezia, infertility. | Clinical suspicion, ultrasound, laparoscopy if indicated. |
| Unexplained Infertility | common | Normal ovulation, semen, tubes, and cavity after workup. | Diagnosis after standard assessment. |
| Uterine Cavity Abnormality | less common | Fibroids, polyps, adhesions, congenital anomaly, recurrent loss. | Ultrasound/sonohysterography/hysteroscopy. |
| Thyroid Disease / Hyperprolactinaemia | less common | Irregular cycles, galactorrhoea, thyroid symptoms. | TSH and prolactin. |
| Sexual Dysfunction / Timing Issue | less common | Infrequent intercourse, ED, vaginismus, dyspareunia. | Sensitive sexual history. |
| Genetic Causes | rare | Azoospermia, recurrent loss, POI, congenital anomalies. | Specialist genetic testing. |
Red Flags & Key History
Symptoms
Haemodynamic instability, syncope, severe pain, fever, or altered mental status — urgent assessment required.
Pregnancy possibility, positive pregnancy test, or pregnancy-related symptoms must change the diagnostic pathway.
Persistent, recurrent, or unexplained symptoms despite initial management require reassessment.
Cancer red flags such as postcoital/postmenopausal bleeding, mass, weight loss, or persistent abnormal discharge require diagnostic evaluation.
Patient priorities, fertility goals, contraception needs, trauma history, and psychosocial impact are central to management.
Medication, device, postpartum, lactation, and STI risk history often explains the presentation.
Signs
Abnormal vital signs, shock, sepsis, peritonism, hypoxia, severe hypertension, or neurological features.
Mass, cervical lesion, adnexal tenderness/mass, uterine tenderness, or abnormal bleeding on examination.
Fever, purulent discharge, cervical motion tenderness, wound infection, or breast erythema/fluctuance when relevant.
Normal examination does not exclude early pregnancy complications, endometriosis, intermittent torsion, or paroxysmal symptoms.
Document chaperone use, consent, and patient comfort for intimate examinations.
Approach to Investigation
First-line
Pregnancy test when pregnancy is possibleMandatory for reproductive-age presentations where bleeding, pain, amenorrhea, contraception failure, or procedure planning is relevant.
Focused history and examinationUse a trauma-informed approach; perform pelvic, breast, abdominal, or postpartum examination only when clinically indicated and consented.
CBC and targeted basic labsAssess anaemia, infection, platelets, renal/liver involvement, or endocrine clues depending on presentation.
Targeted microbiology or imagingUse STI NAAT, urinalysis, transvaginal ultrasound, breast imaging, fetal monitoring, or cervical testing according to the presentation.
Second-line
Ultrasound or diagnostic imagingPelvic, obstetric, breast, renal, or abdominal imaging according to the suspected diagnosis and pregnancy status.
Endocrine or tumour-directed testingUse TSH, prolactin, FSH/estradiol, androgen testing, CA-125, or biopsy only when the clinical pattern supports it.
Tissue diagnosis or samplingEndometrial biopsy, cervical biopsy/colposcopy, breast core biopsy, or hysteroscopy when malignancy, hyperplasia, or discordant findings are suspected.
Specialist
Gynecology/obstetric referralFor emergency, pregnancy-related, surgical, malignant, refractory, fertility-related, or complex presentations.
Multidisciplinary referralUse fertility, oncology, breast clinic, psychiatry, endocrinology, urology, pediatrics/neonatal, or social supports when indicated.
Management Principles
SOGC / Canadian specialty guidance + MCCQE1 clinical presentation approach1
Stabilize and exclude emergencies
- Assess ABCs, vital signs, pregnancy status, bleeding severity, sepsis, severe pain, severe hypertension, fetal status, and psychiatric safety as relevant.
- Call obstetrics/gynecology, anesthesia, blood bank, neonatal, psychiatry, surgery, or oncology early when red flags exist.
- Provide analgesia, antiemetics, fluids, antibiotics, antihypertensives, magnesium sulphate, or blood products when clinically indicated.
2
Treat according to most likely cause
- Use Canadian/SOGC/PHAC/Cancer Care Ontario-aligned pathways rather than non-Canadian defaults.
- Match management to patient goals: fertility, contraception, pregnancy continuation, breastfeeding, sexual function, symptom relief, and cancer risk.
- Do not delay empiric treatment for PID, obstetric emergency management, sepsis care, or psychiatric safety planning while waiting for confirmatory tests.
3
Shared decision-making and follow-up
- Explain uncertainty, expected course, treatment options, and return precautions in plain language.
- Arrange reliable follow-up for serial beta-hCG, repeat imaging, biopsy results, colposcopy, mental health review, or specialist assessment.
- Address equity, confidentiality, trauma history, intimate partner violence, cost, geography, and access barriers.
Complications & Pitfalls
- Skipping pregnancy testing: Many reproductive presentations change completely when pregnancy is present.
- Premature closure: Do not label symptoms as benign until must-not-miss causes have been considered.
- Ignoring red flags: Haemodynamic instability, sepsis, severe pain, psychosis, severe hypertension, or suspicious bleeding/mass require escalation.
- Overusing low-value care: Testing should be targeted; Pap tests, imaging, or hormone panels are not always required.
- Under-communicating follow-up: Serial testing, biopsy results, and safety-netting must be explicit.
MCCQE1 Exam Tips
- 1MCCQE1 reproductive questions are presentation-based: start with stability, pregnancy status, and must-not-miss diagnoses.
- 2The next best step is often the safest first step: beta-hCG, vital signs, focused examination, ultrasound, or urgent consultation depending on the vignette.
- 3Do not perform unsafe examinations or procedures before excluding key contraindications, such as digital vaginal examination before placenta previa is excluded.
- 4Canadian practice matters: use SOGC, PHAC STI guidance, Cancer Care Ontario pathways, and Choosing Wisely Canada principles where relevant.
- 5CanMEDS communicator role is common: consent, confidentiality, trauma-informed examination, shared decision-making, and sensitive counselling are testable.
- 6CanMEDS collaborator role is central in obstetric emergencies and cancer pathways: involve the right team early.
- 7Safety-netting is part of management: worsening pain, fever, heavy bleeding, syncope, fetal concerns, psychosis, or delayed follow-up require urgent reassessment.
practicetest your knowledge on infertilityApply what you've learnt with MCCQE1-style questions from the iatroX Q-Bank — reproductive & obstetric and beyond.
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