Non-steroidal anti-inflammatory drugs for pain in women with endometriosis.

Endometriosis is a common gynaecological condition that affects women and can lead to painful symptoms and infertility. It affects women's quality of life greatly, impacting on their careers, everyday activities, sexual and non-sexual relationships, and fertility. Non-steroidal anti-inflammatory drugs (NSAIDs) are the most commonly used first-line treatment for endometriosis.