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Fertility Glossary

Endometriosis

Tissue similar to the womb lining growing outside the womb, often causing pain.

Female fertility

In endometriosis, tissue resembling the endometrium grows in places such as the ovaries, pelvic lining, bowel or bladder. It can cause painful periods, pain during sex, pelvic pain and, for some, difficulty conceiving through inflammation, adhesions or damage to the ovaries. Diagnosis is often suspected from symptoms and scans and confirmed at laparoscopy. Treatment is individual — pain management, surgery and fertility treatment are all options, and the best route depends on symptoms, age and whether you are trying to conceive.

Also known as: endo, endometriotic disease

Sources

  • ESHRE guidelines and patient information

Last reviewed: 8 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.

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