Endometriosis can affect the bowel in the abdomen and pelvis. Penetration of the endometriosis can vary within two forms:
- Superficial – endometriosis is found on the surface of the bowel
- Deep – endometriosis penetrates the bowel wall.
In some cases, recto-vaginal nodules can start as superficial endometriosis and progress to infiltrate the bowel wall.
