Claim you will see online
Semaglutide produces weight reduction
Weight reduction can improve metabolic and menstrual measures in PCOS
It improves insulin resistance
It is a fertility treatment
It treats hirsutism or androgen excess
It replaces metformin in PCOS
Where the evidence actually stands
Established in large trials in adults with obesity or overweight with a weight-related condition. In STEP 1 (Wilding and colleagues, New England Journal of Medicine, 2021) mean weight change over 68 weeks was about 14.9% with semaglutide 2.4mg against about 2.4% with placebo. That is a group average in a general population, not a PCOS result
Not established. Semaglutide has no approved indication for PCOS. Randomized evidence in PCOS specifically is limited to small, short studies, and it is not the basis for calling this a PCOS treatment
Supported in the broader PCOS literature, where weight reduction is a standard first-line recommendation for people with PCOS who also have overweight or obesity. That evidence is about weight reduction, not about semaglutide specifically
Improvements in insulin resistance markers have been reported in small PCOS studies and are consistent with what weight reduction generally does. Marker improvement is not the same as a clinical outcome, and the studies are too small and too short to settle it
No. It is not a fertility medication and it has not been shown to improve live birth rates. GLP-1 medication is not appropriate in pregnancy or when planning pregnancy
Not established as a direct effect. Those are managed by the clinician who treats your PCOS, with treatments chosen for that purpose
No. Metformin has a much longer track record in PCOS and a different role. Whether either is right for you, or both, or neither, is a clinical decision