Complete bicornuate uterus

This anatomy develops before birth when the structures that form the womb do not join fully. The vagina and cervix may be typical, or there may be associated differences that need checking. Some people have no symptoms and learn about the shape during an ultrasound or pregnancy assessment. Others may experience period pain, recurrent pregnancy loss, preterm birth or a baby lying in an unusual position. The shape itself does not determine what will happen in an individual pregnancy.

A clinician may review previous scans, pregnancy history and menstrual symptoms before arranging detailed imaging. A pelvic MRI can show the outer contour of the womb and the separation between its cavities, helping distinguish a bicornuate uterus from other congenital shapes. If you are pregnant, maternity care may include additional scans to check growth, cervix length and the baby’s position. Treatment is not always needed; surgery is considered only in selected situations after specialist discussion.

Arrange a review if an ultrasound suggests an unusual womb shape, you have repeated pregnancy losses, difficulty conceiving or significant period pain. During pregnancy, contact maternity services for bleeding, fluid loss, regular tightening, pelvic pressure or reduced fetal movement. These symptoms need assessment for their own causes and should not be assumed to result from the uterine shape.

Ask whether the diagnosis is confirmed, whether the cervix and kidneys need assessment, and what the finding means for conception, pregnancy monitoring and birth planning. Ask when specialist review or MRI would add useful information.