Endometriosis and adenomyosis are common gynecological conditions where endometrial tissue grows outside or inside the uterus respectively. Endometriosis occurs when endometrial tissue implants itself in areas like the ovaries or pelvic wall, causing pain and infertility. Adenomyosis involves the growth of endometrial tissue deep in the uterine wall. Both are estrogen-dependent and resolve after menopause. Treatment options include medication to induce amenorrhea and reduce symptoms, or surgery for severe cases or women who have completed childbearing. Hysterectomy provides the only cure for adenomyosis.