Can endometriosis cause a painful bump near the anus?

Yes. Endometriosis can contribute to pain and pressure around the rectum and anal area, especially when disease involves the rectum/rectosigmoid region or nearby tissues. Many patients describe deep pain with bowel movements, rectal pressure, or symptoms that flare around their cycle. Those patterns can fit bowel or deep infiltrating endometriosis.

That said, a sensitive bump on the anus itself is more often something else, such as a hemorrhoid, fissure, skin infection/abscess, or another localized anal/skin condition. In some cases, pelvic disease can coexist with these issues, which is why we don’t assume every finding is endometriosis or dismiss it as insignificant.

If you’re noticing a new, persistent, or worsening bump (especially if it’s very tender, draining, bleeding, or associated with fever), we want to evaluate the full picture. Our team can sort out whether your symptoms point to bowel endometriosis, a separate anorectal condition, or both. We can then plan next steps, such as a focused exam and, when appropriate, expertly interpreted imaging to map possible deep disease.