The birth of an ovarian cyst during a normal menstrual cycle. Ovarian cysts are solid or fluid-filled pockets in or on your ovary. They’re common, especially in women who are pregnant or who haven’t gone through menopause yet. Different types of cysts are Follicle cyst Your ovaries usually release one egg each month. It grows inside a tiny sac called a follicle. When the egg is ready, the follicle breaks open and releases it. If the sac doesn’t open, it causes a follicle cyst. . Another type of cyst is Corpus luteum cyst. Once the egg is released, the empty follicle usually shrinks and helps get ready for the next egg. It becomes a cyst when it closes back up and fluid collects inside.
