About 1 in 3 people with adenomyosis don’t have signs or symptoms. Some people experience: Painful menstrual cramps (dysmenorrhea). Heavy menstrual bleeding (menorrhagia). Abnormal menstruation. Pelvic pain with or without severe cramping. Painful intercourse (dyspareunia). Infertility. Enlarged uterus. Bloating or fullness in your belly (adenomyosis belly).