Taking certain progestin hormones is associated with an increased risk of developing a brain tumor, according to an ANSM study. These medications are prescribed to women against infertility, menopause, endometriosis or simply as contraceptives.
The risk appears after one year of treatment. Women who use these products are advised to have an MRI to confirm the absence of a tumor. The study is also intended to be reassuring regarding hormonal contraceptives such as the IUD, no increased risk was observed.