Painful menstrual periods (dysmenorrhea) are the most common symptom of endometriosis. To relieve pain:

• Try a nonprescription medication, such as ibuprofen or acetaminophen.
• Apply heat, such as a heating pad, hot water bottle, or warm bath, to the lower abdomen. Heat improves blood flow and may relieve pelvic pain.
• Lie down and elevate your legs by placing a pillow under your knees. When lying on your side, bring your knees up to your chest to relieve back pressure.
• Use relaxation techniques and biofeedback. See the topic Stress Management.
• Exercise regularly. It improves blood flow, increases certain pain-relieving substances naturally produced by the body (endorphins), and reduces pain.
• Try sexual activity, which may relieve pelvic cramping and backache but also may make pain from endometriosis worse.