When is metformin for PCOS recommended for anovulation?

Anovulation means the ovary is not releasing an egg regularly. In PCOS, altered hormone signals and insulin resistance can contribute to irregular ovulation. Metformin improves the way the body responds to insulin; this may support more regular cycles for some people, but it is not suitable for everyone and is not an instant ovulation treatment. A clinician may also assess thyroid function, prolactin, weight changes, medicines, and other causes of absent ovulation.

Keep a record of bleeding, cycle gaps, symptoms, and any ovulation tests. Take metformin only as prescribed, usually with advice about gradual dose changes and taking it with food to reduce stomach upset. If conception is the goal, discuss whether ovulation induction is needed and when pregnancy testing or follow-up should happen. Do not stop a prescribed medicine without speaking with the clinician managing your care.

Arrange review for persistent absent periods, new severe pelvic pain, very heavy bleeding, fainting, or a positive pregnancy test with pain or bleeding. Seek urgent help for severe weakness, repeated vomiting, breathing difficulty, or confusion while taking metformin.

Ask what is causing the anovulation, whether metformin matches your goals, how kidney or liver health affects the choice, how side effects will be handled, and when ovulation or fertility treatment should be reassessed.