A Case of Imperforate Hymen with Urinary Retention after Puberty

Imperforate hymen is rare, with a low incidence of 1/16,000–30,000 in newborns. Most symptoms occur because of the accumulation of menstrual blood after puberty. In rare cases it can be found before puberty. Periodic abdominal pain, discomfort of the pelvic region, and the like are most commonly observed, and these symptoms increase at bowel movement. Usually a 13- to 15-year-old girl does not experience menarche. Continuous accumulation of menstrual blood leads to vaginal hematoma, or even to hysterovaginal, ovarian, or abdominal hematomas. Rarely, compression of the surrounding tissues can result in upper back pain, dysuria, frequent urination, or oliguria. We report on a rare case of imperforate hymen with urinary retention.