The condition may be discovered during a regular pelvic exam or during imaging tests to determine the cause of repeated miscarriages.
Symptoms: A double uterus often causes no symptoms.
She said multiple doctors failed to spot the 2cm thick wall of tissue that runs vertically down her vagina, known by the medical term, longitudinal septum - which caused her to have two vaginas.
In these situations, the woman has placed a tampon in one vagina, but blood is still escaping from the second uterus and vagina.
Causes: There is no known causes as to why some women develop two wombs, although genetic factors have been considered.
Years later the now 19-year-old discovered the true cause of her pain - after realising it was impossible to have sex with her boyfriend.
Molly-Rose is now speaking out to raise awareness of the condition.