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Living with Endometrial stromal sarcoma

A rare cancer that starts in the supporting tissue of the uterus.

Understanding Endometrial stromal sarcoma

Endometrial stromal sarcoma is a rare cancer that starts in the supporting connective tissue (stroma) of the uterus.

It happens when cells grow abnormally and out of control. Signs can include bleeding that is not part of a period or that happens after menopause, belly pain or swelling, and needing to urinate often. Most cases occur with no family history of the condition.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Unusual bleeding from the uterus
  • Bleeding after menopause
  • Belly pain
  • Belly swelling (distension)
  • Needing to urinate often

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include cancer specialists, gynecologic cancer specialists, maternal-fetal medicine specialists and women’s reproductive health specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Foundation for Women's Cancer, Sarcoma Alliance and Sarcoma Foundation of America may keep lists of experts for this condition.

Care & treatment

Care team
Cancer specialists (oncologists); Gynecologic cancer specialists (gynecologic oncologists); Maternal-fetal medicine specialists (pregnancy-related); Women’s reproductive health specialists (obstetricians / gynecologists)
Expert care
Expert lists: Foundation for Women's Cancer, Sarcoma Alliance, Sarcoma Foundation of America
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Foundation for Women's Cancer and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
What tests will confirm the diagnosis and how far it has spread?
What treatment options are available for me?
Which specialists should be on my care team?

Quick facts

GARD says the exact cause is unknown. Most cases occur sporadically, which means by chance, in people with no family history.

Urinary and Reproductive

Also known as: endometrial sarcoma; endometrial stromal sarcoma, high grade; endometrial stromal sarcomas; endometrioid stromal sarcoma; ess; sarcomas, endometrial stromal

Patient organizations

Source: NIH GARD · Endometrial stromal sarcomaGARD ID 6339 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Endometrial stromal sarcoma.

Explore the Endometrial stromal sarcoma blog

Explore research for Endometrial stromal sarcoma

Explore actively recruiting Endometrial stromal sarcoma studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Endometrial stromal sarcoma with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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