What is Endometriosis and how do I know if I have it or not?

Endometriosis is a pelvic disorder where the uterine lining grows outside the uterus, causing pain, irregular bleeding, and infertility. Diagnosis involves surgery, but non-invasive treatments like birth control and pain medication are common. Alternative therapies include supplements, acupuncture, and massage. Prevention is unclear, but maintaining overall health is advised.