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Disponible en español: ¿Qué es el cáncer de útero?

Beginner 4 min readSource checked

What Is Uterine Cancer? Endometrial Cancer

Just been diagnosed with Uterine Cancer? Start here instead

A plain-language overview of uterine cancer, focusing on endometrial cancer, where it starts, and how it is found, based on National Cancer Institute resources.

NCI source

National Cancer Institute

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A teenage boy and mother look at a vaccine pamphlet with a doctor

Key fact

Uterine cancer can be of two types: endometrial cancer (common) and uterine sarcoma (rare).

The short answer

Uterine cancer can be of two types: endometrial cancer, which is common, and uterine sarcoma, which is rare. Endometrial cancer forms in the endometrium, the lining of the uterus. It can often be cured because it is usually found early, when unusual vaginal bleeding leads to testing.

  • Uterine cancer can be of two types: endometrial cancer (common) and uterine sarcoma (rare).

  • Endometrial cancer forms in the endometrium, the lining of the uterus.

  • The uterus is a hollow, muscular organ in the pelvis where a fetus grows.

  • Cancer of the endometrium is different from cancer of the muscle of the uterus, which is called uterine sarcoma.

Subjective: What you might experience

This section describes the symptoms and history a patient might report to their doctor.

Abnormal vaginal bleeding

especially any bleeding after menopause (the most important warning sign).

Bleeding between periods or unusually heavy periods before menopause.

Watery or blood-tinged vaginal discharge.

Pelvic pain or pain during intercourse.

Risk history

obesity, excess estrogen exposure, diabetes, and certain inherited syndromes (Lynch).

Objective: Tests and findings

Pelvic exam and transvaginal ultrasound to measure the endometrial lining.

Endometrial biopsy or dilation and curettage (D&C)

the key test for tissue diagnosis.

Hysteroscopy to view inside the uterus when needed.

Imaging (CT/MRI) to assess extent and spread.

Molecular/genetic testing on the tumor to guide therapy and screen for Lynch syndrome.

Interactive anatomy guide

Explore where cancers start and how they are found, on an interactive body map.

Open the anatomy guide

Assessment: Staging and prognosis

Most are endometrial adenocarcinomas; diagnosis confirmed by biopsy.

Staged surgically with the FIGO/TNM systems.

Tumor grade and molecular subtype influence prognosis and treatment.

Often diagnosed early because of noticeable bleeding.

Plan: The treatment approach

Surgery (hysterectomy, usually with removal of tubes and ovaries and lymph node evaluation) is the mainstay.

Radiation and/or chemotherapy depending on stage and risk.

Hormone therapy in selected cases.

Advanced/recurrent

targeted therapy, immunotherapy, and clinical trials.

Follow-up exams and monitoring, plus genetic counseling when Lynch syndrome is suspected.

These are simplified, educational SOAP-style summaries showing the kinds of findings clinicians document when evaluating each cancer, based on National Cancer Institute resources. They describe typical diagnostic criteria and workups — not a real patient, and not medical advice. Real clinical notes are individualized. Always rely on your own care team. Based on National Cancer Institute educational content. Educational only — not medical advice.

Words to know

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Common questions

What are the two types of uterine cancer?

Uterine cancers can be of two types: endometrial cancer, which is common, and uterine sarcoma, which is rare. Endometrial cancer can often be cured because it is usually diagnosed early. Uterine sarcoma is cancer of the muscle of the uterus and is different from endometrial cancer.

Where does endometrial cancer start?

Endometrial cancer forms in the tissues of the endometrium, the lining of the uterus. The uterus is a hollow, muscular organ in a woman's pelvis, where a fetus grows. Cancer of the endometrium is different from cancer of the muscle of the uterus, which is called uterine sarcoma.

What can increase the risk of endometrial cancer?

Obesity and having metabolic syndrome may increase the risk of endometrial cancer. Other risk factors include taking estrogen alone (without progesterone) after menopause, taking tamoxifen for breast cancer, type 2 diabetes, and certain genetic conditions such as Lynch syndrome. Older age is the main risk factor for most cancers.

What are common signs of endometrial cancer?

Signs and symptoms include unusual vaginal bleeding or pain in the pelvis. This can include vaginal bleeding or discharge not related to periods, or vaginal bleeding after menopause. These signs can also be caused by other conditions, so check with your doctor.

Can endometrial cancer be cured?

Endometrial cancer can usually be cured because it is usually diagnosed early. Because it begins inside the uterus, it does not usually show up on a Pap test, so a sample of endometrial tissue is checked under a microscope to make the diagnosis.

Questions to ask your doctor

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Knowledge Check

0 of 4 answered

  1. Q1.According to this article, what is the common type of uterine cancer?
  2. Q2.According to this article, where does endometrial cancer form?
  3. Q3.According to this article, what can increase the risk of endometrial cancer?
  4. Q4.According to this article, what is a common sign of endometrial cancer?

This self-assessment checks understanding of educational content only. It is not medical advice.

Plain-language explanation of the published sources cited on this page. AI-assisted, source-checked, not clinician-reviewed.

Sources last checked: 2026-07-21 what this meansLast updated: 2026-08-10Next planned review: 2027-07-21

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Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.

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General education — varies by person. Answers genuinely differ between people. This page explains what commonly varies and points you to your care team for your situation.

Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.

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How this page was created

Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.

Editorial status: Source checked This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.

Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.

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