Principles of treatment
Medical treatment relies on hormonal manipulation of the ovarian cycle and exerts an effect by inducing amenorrhoea. All types of medical treatment, except analgesics, are effective in reducing endometriosis-associated pain, but their side-effect profile limits their long-term use and recurrence is common on discontinuation. Medical treatment does not improve fertility and is contraceptive. If fertility is the priority, conservative surgery is effective in reducing endometriosis-associated pelvic pain as well as improving the chance of pregnancy.