We can often change the type of pill you are taking and resolve the problem. The risks of using birth control pills are low, when compared to the risks of pregnancy and childbirth. Nearly all the risks are associated with the formation of blood clots in the large veins of the body. The estrogen component in birth control pills used today, is much lower than in pills used 20 years ago. When estrogen dosages were lowered, there was a corresponding decrease in the development of blood clots.
Most studies suggest that pills neither reduce nor increase the risk for breast cancer.
Research continues to evaluate this. Women are encouraged to do monthly self-breast exams and report any changes or problems to their health care provider. Some studies indicate an increased incidence of cervical cancer. However, this may be more related to factors such as numbers of sexual partners, STD exposure, etc., than to birth control pill use. Annual pap smears provide the best screening for cervical cancer.