Adenomyosis, if left untreated, can worsen with each menstrual period, causing increasingly severe menstrual pain, which can worsen once with each period. In addition, it can cause abnormal bleeding from the uterus, causing the uterus to not contract, which can cause heavy bleeding, heavy bleeding or prolonged bleeding. In addition, it can cause infertility because adenomyosis makes the embryo lose the fetus during implantation due to poor blood supply from adenomyosis. If adenomyosis is severe it can cause pelvic inflammatory disease, which can cause abdominal pain and pain when not on your period. If adenomyosis is severe and the endometrium is ectopic to the back of the uterus, it can also cause painful intercourse. In conclusion, women who find adenomyosis must actively take measures to treat it so that it does not increase or worsen every month, causing more and more symptoms.