• Ovarian cysts are fluid-filled sacs in the ovary. They are common and usually form during ovulation. Ovulation happens when the ovary releases an egg each month. Many women with ovarian cysts don’t have symptoms. 

    Most cysts occur when the egg is not properly released or the follicle does not dissolve properly. Most cysts are harmless and will go away on their own. However, sometimes these cysts can disrupt a woman’s cycle causing her to have highly irregular menstruation. Depending on the type of cyst, most of these irregularities can be corrected by medication.

    The two most common types of cysts are:

    Follicular cysts: In a normal menstrual cycle, an ovary releases an egg each month. The egg grows inside a tiny sac called a follicle. When the egg matures, the follicle breaks open to release the egg. Follicular cysts form when the follicle doesn’t break open to release the egg. This causes the follicle to continue growing into a cyst. They often have no symptoms and go away in one to three months. But if they persist and continue to grow in size, they may result in some complications so you may need to have a regular follow up with a doctor to monitor them.

    Corpus luteum cysts: Once the follicle breaks open and releases the egg, the empty follicle sac shrinks into a mass of cells called corpus luteum. Corpus luteum makes hormones to prepare the uterus for pregnancy. Corpus luteum cysts form if the sac doesn’t shrink. Instead, the sac re-seals itself after the egg is released, and then fluid builds up inside. Most corpus luteum cysts go away after a few weeks.