Diagnosis
Can an HSG detect endometriosis?
The short answer
An HSG does not reliably detect endometriosis, as most lesions are in areas it cannot show. It checks the uterine cavity and whether the fallopian tubes are open, and can sometimes hint at related problems like tubal blockage or scarring.
An HSG (hysterosalpingogram) is designed to evaluate the uterine cavity and whether the fallopian tubes are open, so it does not reliably detect endometriosis. Most endometriosis lesions are on the outside surfaces of pelvic organs or deeper within tissues, areas an HSG can’t visualize.
That said, an HSG can sometimes hint at problems that can coexist with endometriosis or be related to it, like tubal blockage, scarring, or distorted tubal anatomy. These findings matter, especially when fertility is part of the concern. In our evaluation, we look at your full symptom pattern and history, then use targeted tools like expertly interpreted ultrasound or MRI when appropriate. We reserve surgery and tissue confirmation for situations where it will truly change management.
If you’ve had an HSG and still feel you don’t have clear answers, we can help you connect the dots. Endometriosis is often missed when testing is limited to what’s easiest to measure. Reach out to schedule a consultation so our team can review your symptoms and prior imaging and map out the most direct path to an accurate diagnosis and durable relief.
Where to go from here
Understand it, compare it with what you're feeling, then talk it through with us.
Step 1 · Understand
Understand the condition
Step 2 · Compare
Symptoms it can relate to
Step 3 · Speak with Us
Wondering About Endometriosis Diagnosis?
An HSG can't reliably detect endometriosis, but our specialists evaluate all your symptoms and related factors to provide a comprehensive diagnosis. We're here to help clarify your concerns and guide you forward.
Questions people ask next
All diagnosis questionsWhat tests check infertility when endometriosis is suspected?
Testing commonly includes transvaginal ultrasound and, when indicated, MRI. A fertility evaluation may also include hormone and ovarian reserve labs, ovulation checks, assessment of the uterine cavity and fallopian tubes, and a partner’s semen analysis.
Can imaging confirm endometriosis?
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.
Is 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.
Further reading
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.
How to Recognize Endometriosis Symptoms
Recognize endometriosis: painful periods, GI and urinary symptoms, dyspareunia, infertility. Understand causes, complications, diagnosis, and medical/surgical treatment options.




