The cause of endometriosis, a painful condition of the uterus, has stumped scientists for years. Now, British researchers think they have discovered a significant clue to the cause of this condition. They believe overproduction of an enzyme called telomerase, which plays a role in cell division, may be responsible.
Endometriosis results in patches of the womb's lining growing into other parts of the body. It can cause severe pain, heavy periods and infertility.
Doctors are hoping the study in the journal Human Reproduction leads to new ways to diagnose and treat the condition.