From a report in OB/Gyn News Online --
Oral contraceptive use by women before age 20 years was a significant risk factor for the development of breast cancer by age 40 in a case-control study in 245 Swedish women with early-onset breast cancer.
Although the risk of early oral contraceptive (OC) use is tentative based on this finding, the result raises enough concern to suggest that women younger than 20 years should avoid using an OC when alternative contraceptive options are available, Helena Jernström, Ph.D. said while presenting a poster at the annual meeting of the American Association for Cancer Research.
For example, an OC should probably not be used to treat acne in women younger than 20, said Dr. Jernström, professor of oncology at Lund (Sweden) University.
