One other well-known, noncontraceptive benefit of oral contraceptives is an improvement in acne
Side effects include bloating, weight gain and acne, although some birth control pills actually improve acne.
Oral contraceptives do not protect against AIDS
Oral contraceptives are available only with a physician's prescription
Oral contraceptives typically will decrease acne and, over time, may decrease excess facial hair. Women with abnormally low estrogen levels in their body may see improvements in skin quality in the vulva and vagina after strating combination oral contraceptives. Some women taking combined oral contraceptives (those that contain both estrogen and progestin) may get brown splotches known as melasma. Similar skin changes may happen due to estrogen increases during pregnancy.
Oral contraceptives may make some existing cancers worse
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Blood sugar levels may increase slightly when oral contraceptives are used
Oral contraceptives may cause the gums to become tender and swollen or to bleed
Women who are breastfeeding should check with their physicians before using oral contraceptives
Oral contraceptives and other hormonal contraceptives have two main components are Progestin and Estrogen, although there are birth control pills that that contain only Progestin.
When taken in the proper amounts, following a specific schedule, oral contraceptives are very effective in preventing pregnancy
According to the CDC, Oral Contraceptives have a failure rate of 9%. Thus meaning their effectiveness is only 91%