Endometriosis is a common and often painful condition that affects around 10% of women. It can happen any time from when periods start right up to the time of menopause (when periods stop).
Endometriosis happens when the tissue lining the uterus (the endometrium) is found outside the uterus, where it implants and starts to grow and function.
Symptoms can include:
period pain
abdominal, back and/ or pelvic pain
heavy or irregular bleeding
bowel or bladder symptoms
infertility
premenstrual symptoms
tiredness
mood changes
bloating
Organisations that specialise in this area of reproductive and/or sexual health