General
Why do people with endometriosis often have other conditions?
The short answer
The genetics, inflammation and immune-system problems involved in endometriosis may also make the body more prone to other inflammation-related or immune-associated conditions. Endometriosis can involve multiple organs, so symptoms may reflect more than one process.
It’s common for endometriosis to occur alongside other diagnoses because it isn’t a single, uniform disease: it’s a complex, multifactorial condition with different subtypes and drivers. In many patients, the same underlying biology (genetics and epigenetics, inflammatory signaling, and immune system dysfunction) that allows endometriosis to implant and persist may also make the body more prone to other inflammation-related or immune-associated conditions. Endometriosis can also involve multiple organs, including the bladder, bowel, pelvic nerves, and beyond, so symptoms may reflect more than one process happening at the same time.
There’s also a practical reason this overlap gets missed at first: many gynecologic conditions share symptoms. Endometriosis and adenomyosis can both cause pelvic pain, painful periods, pain with sex, bloating, and bowel/bladder symptoms, while conditions like fibroids or polyps can add heavy bleeding, clots, anemia, or pressure. A single label may therefore not explain the whole picture. In our practice, we intentionally evaluate for coexisting conditions because identifying the full range of what’s driving your symptoms often changes the treatment plan and helps us tailor surgery and whole-person care more effectively. If your symptoms feel broader than endometriosis alone, or they haven’t improved the way you expected, reach out to our team to discuss a comprehensive evaluation.
Where to go from here
Understand it, compare it with what you're feeling, then talk it through with us.
Speak with Us
Sorting out symptoms isn’t in your head.
Endometriosis can overlap with other inflammatory or immune-related conditions and even affect multiple organs. Our specialists can help identify what’s driving your symptoms and build a plan for endometriosis/adenomyosis and related issues.
Questions people ask next
All general questionsWhat conditions commonly occur with endometriosis?
Many patients with endometriosis report symptoms consistent with IBS-type bowel issues, bladder pain syndrome, migraine, pelvic floor dysfunction, mood symptoms, adenomyosis, or fibroids. Untreated overlapping conditions can keep symptoms going after one problem is addressed.
Is endometriosis an autoimmune disease?
No, endometriosis is not currently classified as an autoimmune disease. It often involves chronic inflammation and changes in how the immune system responds to endometrial-like tissue outside the uterus, and some patients also have autoimmune conditions.
Why is endometriosis often misdiagnosed?
Endometriosis is often misdiagnosed because its symptoms can look like other conditions, and the bigger pattern can be missed. Limited clinician training, dismissed symptoms, and care split among specialists can lead to tunnel vision and delayed answers.
How do I know if I have endometriosis?
Disruptive period pain, pelvic pain between periods, pain with sex, and cycle-linked bowel or bladder symptoms can suggest endometriosis. Symptoms alone cannot confirm it, and normal ultrasound or MRI cannot rule it out.
Further reading
Endometriosis and Autoimmune Disease: Understanding the Link
Explore how immune dysfunction may link endometriosis to autoimmune diseases such as lupus, RA, thyroid disease, celiac, MS, and IBD - evidence and care.
Overlooked Endometriosis Neighbors: Adenomyosis, Bladder, and Bowel Pain
Discover the link between adenomyosis, bladder, and bowel pain after endometriosis surgery. Learn why you might still feel discomfort and what to do.
Endometriosis or Inflammatory Bowel Disease? The Key Differences
How endometriosis and inflammatory bowel disease differ and overlap. Symptoms, diagnostic challenges, epidemiology, treatment risks, and research gaps.






