Intrauterine Devices (IUDs)
The birth control skin patch is a small (1.75 square inch) adhesive patch that is worn on the skin to prevent pregnancy. The patch releases estrogen and progestin, which are absorbed through the skin into the body. A health care professional must prescribe the patch, but you do not need an office visit to apply or remove the patch. The patch is less effective in women who weigh more than 198 pounds. The patch can be worn on the buttocks, chest (except the breasts), upper back or arm, or abdomen. You wear a patch for a week at a time for a total of 3 weeks in a row. During the fourth week, a patch is not worn, and you will have your period. After week 4, a new patch is applied and the cycle is repeated. You apply the patch on the same day of the week even if you still are bleeding. To use the patch as a continuous-dose form of birth control, apply a new patch every week on the same day without skipping a week.