What is most likely to facilitate infertility in women?

• A. Ovulation disorder
• B. Endometriosis
• C. Pelvic inflammatory disease
• D. Uterine fibroids

Answer: (A)

The essential thing to understand is that natural conception hinges on ovulation—the release of a ripe egg each cycle. If ovulation doesn’t occur or is irregular, there’s no egg available to be fertilized, so pregnancy can’t happen in that cycle. That direct barrier—not releasing an egg at the right time—is the most common reason women have trouble conceiving.

Among the options, an ovulation disorder is the best answer because it blocks the very first step in the fertility process. Hormonal imbalances from conditions like PCOS, thyroid problems, or high prolactin levels can prevent ovulation from happening consistently, or at all, making it the most frequent cause of infertility.

The other factors can contribute to infertility too, but in different ways and not as universally. Endometriosis can cause inflammation and scar tissue that interfere with implantation or the movement of eggs and sperm. Pelvic inflammatory disease can damage the fallopian tubes, increasing the chance of blocked passage for the egg or sperm. Uterine fibroids can distort the uterine cavity or disrupt implantation, depending on their size and location. None of these affect the fundamental step of ovulation as directly and as often as an ovulation disorder does, which is why the ovulation problem is the most likely contributor to infertility.