Infertility is a common and distressing problem, affecting up to 1 in 7 couples.
It can result from female factors, male factors, or both, and often has significant psychological and social consequences.
A structured approach is essential, focusing on history, examination, investigations, and appropriate management.
๐ About Infertility
- Definition: Failure to conceive after 12 months of regular, unprotected intercourse.
- Primary infertility: No previous pregnancy.
- Secondary infertility: Failure to conceive after a previous conception (live birth, miscarriage, ectopic, or termination).
- Has profound emotional and social impact on couples.
โ ๏ธ Risk Factors
- ๐ฉ Female: Age >35, endometriosis, PCOS, PID, previous pelvic surgery.
- ๐จ Male: Age >40, varicocele, orchitis, undescended testes, chemotherapy, lifestyle toxins.
- ๐ท Lifestyle: Smoking, alcohol, obesity, poor diet, recreational drugs.
- ๐ฉบ Medical: Diabetes, thyroid disease, autoimmune disorders.
๐ Causes of Infertility
|
|
| Category |
Examples |
Notes |
| ๐ฉ Female โ Ovulatory |
PCOS, hypothalamic dysfunction, hyperprolactinaemia, premature ovarian insufficiency |
Irregular cycles, anovulation |
| ๐ฉ Female โ Tubal/Uterine |
PID, tubal damage, adhesions, fibroids, endometriosis |
Blockage or poor implantation |
| ๐จ Male |
Low sperm count, poor motility, abnormal morphology, genetic (Y microdeletion, Klinefelter) |
Semen analysis abnormal |
| ๐ Unexplained |
No identifiable cause after full evaluation |
~25% of cases |
๐ฉบ Clinical Assessment
- ๐ History: Age, duration of infertility, menstrual cycles, coital frequency, contraception, STIs, systemic illness, medications.
- ๐งโโ๏ธ Exam (Women): BMI, hirsutism (PCOS), pelvic exam for masses or tenderness.
- ๐งโโ๏ธ Exam (Men): Testicular volume, varicocele, signs of hypogonadism.
- ๐ Consider psychosocial impact and relationship strain.
๐งช Investigations
- ๐ฉ Women:
โ Mid-luteal progesterone (day 21 if 28-day cycle).
โ LH, FSH, prolactin, thyroid function, androgens.
โ TVUSS (PCOS, ovarian reserve, uterine pathology).
โ HSG or HyCoSy (tubal patency).
โ Laparoscopy if endometriosis suspected.
- ๐จ Men:
โ Semen analysis (2โ3 samples, โฅ3 months apart).
โ Hormones: LH, FSH, testosterone.
โ Karyotype/genetic testing in azoospermia/severe oligospermia.
โ Scrotal ultrasound if varicocele suspected.
- ๐งฌ Couple: Screen for STIs, HIV, hepatitis B/C before ART.
๐ Management
- ๐ฑ Lifestyle: Weight optimisation, stop smoking, reduce alcohol, balanced diet, folic acid for women.
- ๐ Medical:
โ Ovulation induction: clomiphene, letrozole, or gonadotropins.
โ Metformin in PCOS (insulin resistance).
- ๐ง Surgical:
โ Laparoscopic treatment of endometriosis.
โ Tuboplasty for blocked tubes.
โ Varicocele repair in selected men.
- ๐งช Assisted Reproductive Techniques (ART):
โ IVF (in vitro fertilisation).
โ ICSI (intracytoplasmic sperm injection).
โ Intrauterine insemination (IUI).
โ Donor gametes or surrogacy if needed.
- ๐ง Psychological support: Counselling, support groups for emotional wellbeing.
๐ Prognosis
- ๐ Ovulatory disorders: Good response to induction therapy.
- ๐งฌ Male factor infertility: Excellent results with ICSI.
- ๐ง Tubal disease: Variable, improved with IVF.
- ๐ Unexplained infertility: Many conceive spontaneously or with ART.
๐ References
- RCOG Green-top Guideline No. 12: Fertility Problems โ Investigation and Management.
- ASRM Committee Opinion: Diagnostic Evaluation of the Infertile Couple, Fertil Steril. 2021.
- WHO. Infertility definitions and global estimates. 2020.