But one important point first: infertility does not mean a woman is “incomplete as a woman.” A woman can have normal female anatomy, menstruate regularly, have normal sexual development, and still have difficulty conceiving. Fertility depends on several biological systems working together—and some causes involve the man, not the woman.

Medical reasons a woman may struggle to conceive

Blocked or damaged fallopian tubes

Previous pelvic infections, untreated STIs, pelvic inflammatory disease, endometriosis, or abdominal surgery can damage or block the tubes. The woman may look and feel completely healthy while an egg and sperm simply cannot meet.

Ovulation problems

Conditions such as polycystic ovary syndrome (PCOS), thyroid disorders, very high prolactin, significant weight changes, excessive exercise, or other hormonal disturbances can prevent regular release of eggs.

Declining ovarian reserve

A woman can have normal periods but have fewer remaining eggs or reduced egg quality. Fertility generally declines with age, particularly after the mid-30s.

Endometriosis

Endometrial-like tissue growing outside the uterus can cause inflammation, scarring and distortion of reproductive organs. Some women have surprisingly few symptoms.

Fibroids or uterine abnormalities

Depending on their size and location, fibroids, polyps, adhesions or congenital abnormalities of the uterus can interfere with implantation or pregnancy.

Premature ovarian insufficiency

Sometimes the ovaries stop functioning normally before age 40. This can occur even in women who previously had normal menstrual cycles.

Unexplained infertility

Sometimes investigations show apparently normal ovulation, tubes, uterus and semen, yet pregnancy still doesn't occur. This is called unexplained infertility. It doesn't mean the problem is imaginary; current medical tests simply cannot identify every cause.

And there is another side of the story

The woman should not automatically be blamed. Male factors contribute to infertility in a substantial proportion of couples. Low sperm count, poor sperm movement, abnormal sperm shape, hormonal problems, infections, varicocele and other conditions can affect conception.

Some local/African realities

In many African communities, additional factors can unfortunately increase the risk of infertility: untreated sexually transmitted infections, delayed treatment of pelvic infections, unsafe abortions and complications, postpartum infections, limited access to reproductive healthcare, and reliance on unregulated herbal or traditional remedies. These should be discussed carefully—not as accusations, but as genuine public-health issues.

The most important message is this:

A woman who cannot conceive is not less of a woman. Infertility is a medical condition, not a measure of femininity, morality or worth.

If a couple has been trying to conceive for 12 months without success (or 6 months when the woman is 35 or older), both partners should ideally be evaluated—not just the woman.