Rabies Vaccines at the US National Library of Medicine Medical Subject Headings (MeSH)
It may, however, fill with fluid or blood, causing the corpus luteum to expand into a cyst, and stay in the ovary. Usually, this cyst is on only one side, and does not produce any symptoms.In women of reproductive age cysts with a diameter of less than 5 cm are common, clinically inconsequential, and almost always a physiological condition rather than a cancer or other disease condition. In postmenopausal women the threshold for concern is 1 cm. Although ovarian cancer may be cystic, it does not arise from benign corpus luteum cysts. Medical specialty professional organizations recommend no follow-up imaging for cysts which are considered clinically inconsequential.A ruptured corpus luteum can cause hemoperitoneum with abdominal pain, and is a common condition in women of reproductive age. It may be confused with ectopic pregnancy. Interaction with medication
The fertility drug clomiphene citrate (Clomid, Serophene), used to induce ovulation, increases the risk of a corpus luteum cyst developing after ovulation. These cysts do not prevent or threaten a resulting pregnancy. Women on birth control pills usually do not form these cysts; in fact, preventing these cysts is one way birth control pills work. In contrast, the progesterone-only pill can cause increased frequency of these cysts. References


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