Associations between hormonal contraceptives and breast cancer risk can vary by formulation: some analyses have reported slightly higher risk with certain progestins such as desogestrel, while other formulations such as medroxyprogesterone acetate injections (Depo‑Provera) have not shown an increased risk in some analyses.
October 30, 2023
high
temporal
Differences in hormone type and delivery method are relevant when assessing contraceptive safety profiles.