by Emily Goebel, MD FRCPC
March 9, 2023
A corpus luteum cyst is a non-cancerous fluid-filled growth in the ovary. These types of cysts are very common in women of reproductive age.
The corpus luteum is a normal structure that remains in the ovary after ovulation. It is made up of the cells that surround the developing ova (egg). If fertilization does not occur, the corpus luteum changes into a structure called the corpus albicans. If for any reason the corpus luteum remains at the end of the menstrual cycle, it begins to grow and fills with fluid, thereby creating a corpus luteum cyst.
Corpus luteum cysts may not cause any symptoms. However, large cysts can rupture which can cause bleeding in the abdomen and pain.
Yes. A corpus luteum cyst can develop even if you are not pregnant.