Endometriosis is a painful uterine condition that causes the endometrium, which lines your uterus, to grow outside of it. In most cases, the tissue will grow around the fallopian tubes and ovaries.
Because endometrial tissue outside of the uterus behaves like it would inside the uterus, it attempts to shed every month through a process of thickening, breaking down, and bleeding. Unlike tissue in the uterus, that which is outside of the uterus has nowhere to go.
When endometriosis affects the ovaries, cysts can form on the ovaries called endometriomas. These can also cause irritation to surrounding tissues, and adhesions, bands of tissue that cause organs to stick together.
Symptoms of endometriosis include:
- Painful periods
- Pain during sex
- Heavy bleeding