When to worry about a missed period with polycystic ovary syndrome

Polycystic ovary syndrome can disrupt ovulation, so periods may be infrequent, unpredictable or absent. Other features can include acne, increased facial or body hair, scalp hair thinning and difficulty with ovulation when trying to conceive. Symptoms and cycle patterns vary.

A missed period has several possible explanations. Pregnancy, thyroid conditions, changes in weight, stress, medicines and other hormonal causes should not be assumed away because polycystic ovary syndrome is already known. Long gaps between bleeds can also allow the womb lining to become thicker, which is why cycle review matters.

Record bleeding dates, spotting, pain, medicines and pregnancy possibility, then arrange a routine review for a persistent or changing pattern. Your clinician may discuss cycle regulation, contraception, fertility goals and metabolic health. Do not stop prescribed treatment or start hormone products without advice.

Seek urgent care for severe one-sided pelvic pain, fainting, severe weakness, heavy bleeding, chest pain or shortness of breath. If pregnancy is possible, urgent assessment is needed for pain or bleeding with a positive test. Arrange prompt review for bleeding between periods, after sex, or after a long gap, rather than waiting for the pattern to settle.

Ask how often you need a bleed or cycle review, whether pregnancy testing is appropriate, and which treatment matches your pregnancy plans. Ask whether your symptoms suggest another cause and how to monitor the womb lining and overall health.