Labial fusion, or labial adhesion, is when the small inner lips around the entrance to the vagina become sealed together.

In some cases, this can completely seal the vaginal opening, leaving a very small gap at the front that urine passes through.

It's a fairly common condition in girls under seven years old and is usually nothing to worry about.

Content supplied by the NHS Website

Medically Reviewed by a doctor on 25 Nov 2016