Diagnosis
Can imaging confirm endometriosis?
The short answer
Imaging can be very helpful, but it usually can’t confirm endometriosis on its own. Ultrasound or MRI may strongly suggest disease, but a normal scan doesn’t rule it out because many small, superficial or microscopic lesions won’t show up on scans.
Imaging can be very helpful, but it usually can’t confirm endometriosis on its own. Ultrasound or MRI may strongly suggest disease when they show findings such as endometriomas (ovarian cysts related to endometriosis) or deep infiltrating lesions.
However, many endometriosis lesions are superficial, small, or microscopic and won’t show up on scans even when symptoms are significant. A normal ultrasound or MRI doesn’t rule out endometriosis, and an abnormal scan is best interpreted alongside your symptoms and exam. If you’re trying to understand what your imaging results mean for your next steps, our team can review your records and help you decide on the most effective path forward.
Where to go from here
Understand it, compare it with what you're feeling, then talk it through with us.
Compare
Symptoms it can relate to
Speak with Us
Unsure About Imaging Results?
Imaging can hint at endometriosis but often can't confirm it alone. Our specialists interpret your scans alongside symptoms to guide your diagnosis and care.
Questions people ask next
All diagnosis questionsIs laparoscopy the only way to confirm endometriosis?
Yes. At this time, the only definitive way to confirm endometriosis is laparoscopy, with direct visualization and biopsy of suspected lesions. Imaging and exams can strongly suggest it, but can’t reliably rule it in or out in every case.
Should I trust normal imaging if symptoms persist?
A normal ultrasound or MRI can be reassuring, but it doesn’t automatically explain away ongoing symptoms. Endometriosis, and sometimes adenomyosis, can still be present, so your symptom history remains the primary guide when symptoms persist.
Will endometriosis show up on ultrasound?
Sometimes, but a normal ultrasound does not rule out endometriosis. Ultrasound is best at detecting endometriosis cysts in the ovaries and, in skilled hands, signs of deep disease or scarring; many superficial lesions are too small or subtle to be seen on standard imaging.
Will endometriosis show up on MRI?
Sometimes, but a normal MRI does not rule out endometriosis. MRI is best at picking up endometriosis-related ovarian cysts and deep disease, but superficial endometriosis and small implants often don’t show up, even when symptoms are significant.
Further reading
Can Scans and Tests Find Endometriosis? Know the Limits
Discover why ultrasounds may miss endometriosis. Learn about imaging limits and recent research in our latest blog. Find clarity in your diagnosis.
Endometriosis Biopsy: A Definitive Method for Diagnosis
Learn when a biopsy is essential for confirming endometriosis or adenomyosis. Explore symptoms, research findings, and options beyond surgery.
Deep Infiltrating Endometriosis: Current and Future Treatments
Deep infiltrating endometriosis: symptoms, causes, diagnosis and treatment. Medical therapy, ICG-guided surgery, stenting, pathology, and future outlook.
