How can birth control help an ovarian cyst?

One of the main ways hormonal birth control prevents pregnancy is by stopping ovulation—meaning that the egg never leaves the ovary. The pill, the patch, the ring, and the shot are the methods that are the most reliable at blocking ovulation, so people using these methods may have fewer ovarian cysts. If you tend to get ovarian cysts, your provider may recommend one of these methods to prevent future cysts. The progestin-only pill, also called the mini-pill, has an unpredictable effect on ovulation and may actually lead to more cysts. These cysts almost always disappear on their own, but if you’ve had problems with cysts in the past, the mini-pill may not be the best birth control for you.