Combined and progestogen-only hormonal contraceptives may increase breast cancer risk

[News]

An analysis of data by researchers at Oxford Population Health's Cancer Epidemiology Unit has shown that use of progestogen-only hormonal contraceptives is associated with a 20-30% higher risk of breast cancer.

More... (https://www.news-medical.net/news/20230322/Combined-and-progestogen-only-hormonal-contraceptives-may-increase-breast-cancer-risk.aspx)