This week's artwork was donated by Dathan, a pediatric cancer patient who received treatment at The Children's Hospital of Philadelphia .
Breast cancer is common and on the increase.
Use of hormonal contraceptives is also common and is expected to increase worldwide. Thus, even a small increase in the risk of breast cancer in women using OCs would be significant because of the frequency of the exposure. In this study, the researchers reported risk of developing breast cancer associated with OC use. Method A total of 3396 blood relatives of breast cancer patients and 2754 women who married into families with breast cancer were included to determine whether OC use could increase risk of breast cancer in women with family history of breast cancer. The association was significant only among sisters and daughters of breast cancer patients.