Abnormal Uterine Development

A rudimentary horn of the uterus is caused by a defective fusion of the paramesonephric ducts. One paramesonephric duct usually develops normally, while the contralateral one can develop into various degrees of rudimentary horns [3]. The incidence is about 0.1 % {1}. Patients usually consult doctors because of infertility, recurrent miscarriage, or chronic pelvic pain [2]. The incidences of rudimentary horn in patients with a medical history of miscarriage, infertility, and recurrent miscarriage are 0.5, 0.5, and 3.1 % [1].