Adenomyosis is condition in which supporting tissues and endometrial glands occur in the uterus. Due to the growth of gland tissues during menstrual cycle, blood and the old tissue becomes incapable of escaping from the uterine muscle, and thus flow out of cervix as a part of normal menses. The condition is mostly found in women of age group 35-50 years who have had children. The disease is also recognized with its alternative names like Adenomyoma and Endometriosis interna.  Sometimes, it happens that Adenomyosis leads to Adenomyoma, growth or mass within the uterus.

Causes of Adenomyosis are unknown till today. Still, it is believed that any kind of uterine trauma that results in breaking barrier between myometrium and endometrium may result in causing it.

As such, no prevention prevails of the disease.