Diagnosis
How do I tell fibroids from endometriosis or adenomyosis?
The short answer
Symptoms alone can’t reliably tell them apart. Fibroids most often cause heavy bleeding and pelvic pressure, endometriosis more typically causes cycle-linked pelvic pain, and adenomyosis commonly combines very heavy bleeding with intense cramping. Imaging may help clarify the cause.
Fibroids most often show up as heavy or prolonged bleeding (sometimes with clots) and bulk symptoms like pelvic pressure, frequent urination, constipation, or a feeling of fullness. Endometriosis more typically causes inflammatory, cycle-linked pelvic pain, deep pain with sex, and pain with bowel movements or urination, sometimes even when bleeding isn’t especially heavy. Adenomyosis can overlap with both, but commonly combines very heavy bleeding with intense cramping and a tender, sometimes enlarged uterus.
Symptoms alone can’t reliably tell these conditions apart, and it’s also possible to have more than one at the same time. Ultrasound may identify fibroids as well-defined masses in the uterus, while MRI can be especially helpful for spotting patterns consistent with adenomyosis and mapping endometriosis-related findings. Our team can help interpret your symptoms alongside imaging to clarify what’s driving them and discuss the best next steps for relief.
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Struggling to Tell Your Symptoms Apart?
Our specialists understand how confusing symptoms can be between fibroids, endometriosis, and adenomyosis. We can help diagnose accurately and guide you toward effective treatment options.
Questions people ask next
All diagnosis questionsDo fibroids or adenomyosis often occur with endometriosis?
Yes, fibroids and adenomyosis can coexist with endometriosis, and the overlap is especially common in people with heavy bleeding and significant period pain. Identifying which conditions are present is important for choosing the most effective treatment plan.
When is adenomyosis more likely than endometriosis?
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.
What if I have pelvic pain or bladder/bowel symptoms with fibroids?
Pelvic pain or bladder and bowel symptoms can happen with fibroids, but they can also signal another contributing condition, such as endometriosis or pelvic floor muscle dysfunction. A fibroid-only treatment plan may not fully relieve these symptoms.
Further reading
Why Endometriosis and Fibroids Often Show Up Together—And What That Means for You
Explore why endometriosis and fibroids often coexist, their symptoms, and what it means for your health. Get informed on your care options.
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.
