What is the difference between adenomyosis and endometriosis?

What is the difference between adenomyosis and endometriosis?

Adenomyosis and endometriosis are disorders that involve endometrial tissue. Both conditions can be painful. Adenomyosis is more likely to cause heavy menstrual bleeding. The difference between these conditions is where the endometrial tissue grows.

• Adenomyosis: Endometrial tissue grows into the muscle of the uterus.
• Endometriosis: Endometrial tissue grows outside the uterus and may involve the ovaries, fallopian tubes, pelvic side walls, or bowel.