Adenomyosis in 3D: symptoms, causes, and treatment options for pelvic pain and infertility Adenomyosis is a form of endometriosis where tissue similar to the endometrium (the inner lining of the uterus) grows into the muscle layer of the uterus. This condition can cause a range of uncomfortable symptoms, including: 🔹 Heavy and/or prolonged menstrual periods 🔹 Painful menstruation 🔹 Pain during intercourse 🔹 Chronic pelvic pain 🔹 Abnormal uterine bleeding 🔹 Infertility In addition, women wi