Endometriosis is a condition where endometriosis gland cells are unusually found outside the uterus, growing onto and sometimes into other organs.
For reasons not fully understood, the normal mechanisms that everyone has to remove abnormal tissue like this do not work properly, and these cells continue to grow slowly and progressively.
Approximately 10% of all women between the ages of 15 and 45 have this condition.
It does not occur in girls who are yet to have their first period, and it does not increase in severity in women who are approaching menopause.
Further information about endometriosis:
Endometriosis Symptoms Pain management Fertility information Treatment options
