Hematocolpos

Hematocolpos is a medical condition in which the vagina is pooled with menstrual blood due to multiple factors leading to the blockage of menstrual blood flow. The medical definition of hematocolpos is "an accumulation of blood within the vagina". It is often caused by the combination of menstruation with an imperforate hymen.^[1][2] It is sometimes seen in Robinow syndrome, uterus didelphys, or other vaginal anomalies.

A related disorder is hematometra, where the uterus fills with menstrual blood.^[3] It presents after puberty as primary amenorrhea, recurrent pelvic pain with a pelvic mass. This can be caused by a congenital stenosis of the cervix, or by a complication of a surgical treatment.^[4] Mucometrocolpos is the accumulation of mucous secretions behind an imperforate hymen.^[5][6] Mucometrocolpos can sometimes cause abdominal distention.^{[7][8][9][10]}