Endometriosis is a chronic and systemic inflammatory disease where uterine endometrial-like tissue grows outside the uterus. The most common symptom is debilitating pelvic pain before and during menstruation, or during intercourse. It can also cause infertility and digestive issues such as painful bowel movements, among many other symptoms. Globally, it affects a staggering 10%–15% of female individuals of reproductive age: around 190 million people.