Diagnosis
When is adenomyosis more likely than endometriosis?
The short answer
Adenomyosis often rises to the top of the list when periods are heavy and painful, with deep, crampy uterine pain that can linger between cycles. An enlarged, tender uterus or certain ultrasound or MRI findings may support it, but endometriosis can also be present.
Adenomyosis often tops the list when your main pattern is heavy, painful periods (sometimes with clots) and deep, crampy uterine pain that can linger between cycles. On exam, the uterus may feel uniformly enlarged and tender rather than normal in size with more localized tenderness.
Imaging can help distinguish the two: a high-quality pelvic ultrasound or MRI may show features such as a thickened junctional zone or small cysts within the uterine muscle (myometrium), which supports adenomyosis. Because it’s common to have adenomyosis and endometriosis together, our team typically evaluates both possibilities so your treatment plan matches the full picture. Reach out if you’d like a focused review of your symptoms and imaging.
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Heavy, Painful Periods? Know Your Diagnosis
If you experience heavy, crampy periods and an enlarged uterus, adenomyosis may be the cause. Our specialists use advanced imaging and exams to accurately diagnose and tailor your treatment plan.
Questions people ask next
All diagnosis questionsCan you have both endometriosis and adenomyosis?
Yes, many patients can have both endometriosis and adenomyosis at the same time. Their symptoms may blend together, and having both can affect treatment planning because endometriosis is outside the uterus while adenomyosis is within the uterine muscle.
How is endometriosis different from adenomyosis?
Endometriosis involves tissue similar to the uterine lining growing outside the uterus; adenomyosis involves that tissue growing into the uterus's muscle wall. They can occur together, and when they do, symptoms may feel more severe and fertility can be affected.
What are the key symptoms of adenomyosis?
Adenomyosis more commonly causes heavy or prolonged periods and significant cramping that can feel deep, sore, or achy. Many patients describe pelvic pressure, uterine tenderness, and heaviness, sometimes with bloating or low back discomfort that tracks with the cycle.
Are heavy periods always adenomyosis?
No, heavy periods can be a symptom of adenomyosis, but many people with heavy bleeding have a different underlying cause. Fibroids and other uterine conditions can also cause heavy bleeding and cramping, and it’s possible to have more than one issue at the same time.
Further reading
Do My Symptoms Mean Adenomyosis or Endometriosis?
Discover the truth about endometriosis and adenomyosis symptoms. Understand how common they really are, and gain insights for effective advocacy.
Adenomyosis vs. Endometriosis: Are They Different or Related?
Explore the key differences between adenomyosis and endometriosis, their symptoms, overlap, and treatment options for better fertility outcomes.
Diffuse Adenomyosis Diagnosis and Treatment That Fit Your Goals
What diffuse adenomyosis means, how ultrasound and MRI guide diagnosis, and which treatments may fit your bleeding, pain, and fertility goals.
