Can endometriosis become cancer?

Yes, endometriosis can rarely undergo malignant transformation, but for the vast majority of people it does not turn into cancer. Endometriosis itself is not cancer, even though it can behave in cancer-like ways (invading tissues, scarring, and spreading beyond the pelvis). The best-supported association in research is with certain ovarian cancer subtypes, especially clear cell and endometrioid ovarian cancers. The risk appears highest when the ovaries are involved, such as with endometriomas.

What matters most is context: your age, family history/genetics, imaging findings, and whether a cyst or mass is changing over time. If you’re worried about an endometrioma, deep disease, or persistent symptoms that don’t fit your usual pattern, our team can evaluate the full picture and help you understand what’s reassuring and what deserves closer workup. If surgery is appropriate, strategic minimally invasive excision can treat disease and allow tissue diagnosis when needed, so you’re not left guessing. Reach out to schedule a consultation if you’d like a personalized risk discussion and a clear plan.