Introduction
Uterine cancer is uncontrolled growth of cells in the uterus. The most common type is endometrial carcinoma (inner lining); uterine sarcoma arises from muscle or supporting tissue and is rarer but often more aggressive.
Many endometrial cancers are caught early because postmenopausal bleeding prompts evaluation—survival is generally good when treated promptly. Obesity, unopposed estrogen exposure, PCOS, diabetes, and Lynch syndrome are major risk factors.
Any bleeding after menopause should be evaluated—not dismissed as normal aging. Treatment usually includes surgery, sometimes with radiation, chemotherapy, hormone therapy, or immunotherapy based on stage and molecular features.
This page is general health education. It is not oncology treatment planning. See a gynecologist promptly for abnormal bleeding.
Overview
Endometrioid adenocarcinoma is most frequent; serous, clear cell, and carcinosarcoma behave more aggressively. Molecular groups (POLE, dMMR/MSI-high, p53-abnormal) guide therapy.
Precancerous atypical hyperplasia or EIN may progress without treatment. Staging combines surgery and imaging to plan further care.
There is no routine screening test for average-risk women—awareness of bleeding symptoms is key.
- Mainly endometrial cancer; sarcoma is rare
- Key warning: any postmenopausal bleeding
- Risks: obesity, estrogen excess, PCOS, Lynch syndrome
- Diagnosis: ultrasound and endometrial biopsy
- Primary treatment often hysterectomy with lymph assessment
- Good cure rates when found early
- No population screening test—symptom awareness matters
What happens in the body
Excess estrogen without progesterone stimulation thickens the endometrium—hyperplasia may become cancer. Adipose tissue converts androgens to estrogen in obesity; insulin resistance and inflammation contribute.
Lynch syndrome impairs DNA mismatch repair, sharply raising risk. Sarcomas follow different biology and need specialized management.
- Estrogen excess drives endometrial overgrowth
- Obesity and insulin resistance increase risk
- Lynch syndrome greatly raises genetic risk
- Atypical hyperplasia may precede cancer
- Molecular profile guides targeted therapy
Signs and symptoms
Do not ignore these warning signs:
- Any vaginal bleeding after menopause
- Bleeding between periods
- Heavier, longer, or more frequent periods
- Watery pink or brown vaginal discharge
- Spotting or bleeding after intercourse
- Pelvic pain, pressure, or cramping
- Pain during intercourse
- Unexplained weight loss
- Fatigue or shortness of breath from anemia
- Bowel or bladder habit change in advanced disease
- Abdominal bloating or fullness
- Persistent irregular bleeding not resolving
- Symptoms with family history of colon or endometrial cancer
Causes and risk factors
Hormonal, metabolic, genetic, and lifestyle factors interact:
- Estrogen therapy without progesterone when uterus is present
- Obesity—the strongest modifiable risk factor
- Type 2 diabetes and insulin resistance
- PCOS and chronic anovulation
- Early menarche or late menopause—longer estrogen exposure
- Never having been pregnant (nulliparity)
- Lynch syndrome and strong family cancer history
- Tamoxifen use requiring monitoring
- Prior pelvic radiation
- Unhealthy diet and low physical activity
Diagnosis and evaluation
History, exam, imaging, and tissue diagnosis together:
- Bleeding pattern, medications, PCOS/diabetes, family history
- Pelvic examination
- Transvaginal ultrasound measuring endometrial thickness
- Endometrial biopsy—the definitive diagnostic step
- Hysteroscopy with D and C when needed
- MRI or CT for staging; PET-CT selectively
- MMR/MSI testing for Lynch screening and immunotherapy guidance
Treatment and management
Personalized plan by stage, grade, histology, and molecular markers:
- Hysterectomy with removal of ovaries and tubes (often minimally invasive)
- Sentinel lymph node mapping or lymph node assessment
- Fertility-sparing progestin or IUD in highly selected early cases with strict monitoring
- Vaginal brachytherapy or pelvic external beam radiation
- Chemotherapy (for example carboplatin/paclitaxel) for high-risk or advanced disease
- Hormone therapy for hormone-sensitive recurrence
- Immunotherapy especially for dMMR/MSI-high tumors
- Subtype-specific systemic therapy for sarcoma
- Supportive care for pain, nutrition, menopause, and mental health
Prevention, self-care, and lifestyle
Not every condition is fully preventable, but the steps below may lower risk or recurrence:
- Evaluate any postmenopausal bleeding promptly
- Maintain healthy weight, exercise, and fiber-rich diet
- Control diabetes and PCOS
- Use combined estrogen-progestin HRT when uterus is present—discuss with clinician
- Genetic counseling for familial risk
- Treat atypical hyperplasia completely with follow-up
Possible complications
Delay, missed care, or unsafe self-medication can raise the chance of complications in some cases:
- Local or distant metastasis
- Treatment side effects from radiation or chemotherapy
- Recurrence especially in high-risk histology
- Anemia and chronic fatigue
- Menopause and bone health issues after ovary removal
- Sexual health concerns and emotional distress
When to see a doctor or seek emergency care
Seek prompt medical advice or emergency care if any of the following apply—it is safer not to wait and see:
- Any bleeding after menopause
- Irregular or heavy bleeding not improving
- Abnormal discharge or bleeding after sex
- Pelvic pain with weight loss
- New bleeding while on tamoxifen
- Family history of Lynch or colon/endometrial cancer with symptoms
Living with the condition
After surgery, gradually increase activity; pelvic floor exercises and good nutrition aid recovery. Follow-up is frequent in early years.
Report radiation or chemotherapy side effects—bowel or bladder irritation, fatigue, vaginal dryness—to your care team.
Maintain weight and blood sugar control. Survivorship planning supports long-term wellness.
Frequently asked questions
Is uterine cancer curable?
Many early endometrial cancers are curable with surgery and sometimes limited additional therapy. Stage, grade, and molecular features determine prognosis.
What is the main early warning sign?
Postmenopausal bleeding, intermenstrual bleeding, unusually heavy periods, or pink/brown discharge.
What is the main treatment?
Most cases need hysterectomy with lymph node assessment; radiation, chemotherapy, hormone, or immunotherapy may be added.
Can I still have children after treatment?
Standard hysterectomy ends fertility. Rare fertility-sparing options exist in very selected early cases under strict monitoring.
Can cancer come back?
Yes, especially in high-risk stages—regular follow-up enables early detection of recurrence.
Is there a screening test?
No routine test for average-risk women—prompt evaluation of abnormal bleeding is the best strategy.
Important caution
This article is general health education in English. It is not personal medical advice.
Diagnosis and treatment should be guided by a qualified clinician who knows your full history.
Seek urgent care for severe, sudden, or rapidly worsening symptoms.