Follicular cyst of ovary

The follicular cyst of the ovary is a type of functional simple cyst, and is the most common type of ovarian cyst. The follicular cyst of the ovary is a type of functional simple cyst, and is the most common type of ovarian cyst. Its rupture can create sharp, severe pain on the side of the ovary on which the cyst appears. This sharp pain (sometimes called mittelschmerz) occurs in the middle of the menstrual cycle, during ovulation. About a fourth of women with this type of cyst experience pain.