Harm of birth control pills. From the loss of libido to cancer!

Harm of birth control pills - does it really exist? The risk of the disease with which cancer reduces birth control pills, and how much they increase? The harm of birth control pills in reducing libido, but the benefit in reducing the symptoms of premenstrual syndrome. How do birth control pills affect fertility? The harm of birth control pills in increasing the risk of thrombosis and the benefit in reducing the risk of cardiovascular diseases. How do birth control pills affect weight?