The ovary is the female reproductive organ which is responsible for the production of eggs and the secretion of female hormones. Ovarian cysts are sacs in the ovary which are filled with fluid. The symptoms associated with the presence of ovarian cysts include irregular menstrual periods, pelvic pains, nausea, vomiting, abdomen fullness, and urinating difficulties. Some ovarian cysts are harmless and they disintegrate even without any form of treatment or medication after a few months.

There are three types of ovarian cysts: the Graafian follicle cyst, the corpus luteum cyst, and the hemorrhagic cyst. The Graafian follicle cyst is exists when the expected occurrence of ovulation fails. The follicle fails to rupture and release the egg and as a result, it develops into a cyst. A Graafian follicle cyst is a thin-walled, granulosa-lined sac loaded with clear fluid. The corpus luteum cyst, on the other hand, exists after the release of an egg from the follicle. The follicle that released the egg transform into a mini-gland called corpus luteum. This mini-gland produces huge amounts of the hormones estrogen and progesterone for the anticipation of a pregnancy. In cases wherein pregnancy fails to take place, the mini-gland may disintegrate. However, there are still cases wherein it may fill itself with fluids or even blood and develop itself into a cyst. The last type of ovarian cyst is the hemorrhagic cyst. A hemorrhagic cyst exists upon the entrance of blood into the sac from a newly-broken blood vessel. Hemorrhagic cysts may be very painful when they rupture because they contain blood.