Causes of Endometrial Cancer

Written by Xu Xiao Ming
Obstetrics and Gynecology
Updated on March 30, 2025
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Patients with endometrial cancer generally have factors such as hypertension, diabetes, and obesity that induce the condition. They are more prone to developing endometrial cancer. Furthermore, endometrial cancer is divided into hormone-dependent and non-hormone-dependent types. Hormone-dependent endometrial cancer occurs when there is an excess of estrogen produced in the body without sufficient counteraction by progesterone, leading to excessive growth and proliferation of the endometrial lining. When this growth becomes uncontrolled, it can lead to cancer. Non-hormone-dependent endometrial cancer is not caused by hormonal factors and its development is more complex. Additionally, the pathology type of non-hormone-dependent endometrial cancer is also quite unique.

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How is endometrial cancer staged?

Endometrial cancer is a common gynecological malignancy in women. Based on surgical and pathological results, endometrial cancer can be divided into four stages. Stage I is the mildest form of endometrial cancer, where the cancer is confined only within the endometrium and does not extend beyond the uterine serosa. Generally, stage 1a is when the cancer is less than half the width of the muscle, while stage 1b is when the cancer infiltrates more than half the width of the muscle. Stage II means the cancer has locally spread but only involves the cervix, without causing cervical stromal infiltration. Stage III involves local spread to the serosa and lymph nodes. Stage IV involves distant metastasis, such as to the liver and bones.

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Is surgery necessary for endometrial cancer?

For endometrial cancer, surgery is generally recommended as the first choice, because early-stage endometrial cancer can largely be cured through surgical treatment. Besides surgery, other options include medication, radiation therapy, and chemotherapy, which are used for mid to late stages or in conjunction with surgery in early stages. When treating endometrial cancer, the treatment method should be chosen based on the specific condition and stage of the patient. In early-stage endometrial cancer, surgery is the preferred treatment. Therefore, aside from surgical treatment, patients should choose medication, radiation therapy, or chemotherapy based on their specific conditions.

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What are the symptoms of endometrial cancer?

Patients with endometrial cancer mainly experience symptoms in three areas: First, obvious symptoms caused by local tumors in the uterus, such as irregular vaginal bleeding, changes in the menstrual cycle, a sense of fullness and dull pain in the lower abdomen and pelvic area, along with significant discomfort and pain. Second, clinical symptoms caused by metastatic lesions. Endometrial cancer can spread through three pathways, which after dissemination can cause a variety of symptoms, such as abdominal pain, bloating, constipation, headache, vomiting, movement disorders, chest tightness, coughing, wheezing, and difficulty breathing. Some patients may also experience bone pain. Third, systemic symptoms, which are typically seen in advanced stages of endometrial cancer and commonly include cachexia, fever, and others.

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Endometrial cancer leukorrhea symptoms

The main manifestation of endometrial discharge is an increase in the amount of discharge, which can be watery or bloody. Sometimes, it can also appear as pus-blood-like discharge. Another main symptom of endometrial cancer is irregular vaginal bleeding. During an ultrasound, uneven echoes can be seen within the uterine cavity. The patient may also experience pain in the lower abdomen and increased menstrual flow. Therefore, if there are abnormalities in menstruation or unusual vaginal discharge, it is necessary to promptly go to the hospital for an ultrasound and gynecological examinations, and receive treatment based on the results of these tests.

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Written by Li Lin
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Are uterine cancer and endometrial cancer the same?

Uterine cancer is divided into cervical cancer and endometrial cancer. Cervical cancer is a malignant tumor that occurs in the epithelium and glandular tissue of the cervix, while endometrial cancer is a group of epithelial malignant tumors that occur in the endometrium. The two types of cancer differ due to their different sites of origin. Accordingly, the examination and treatment methods adopted are also not completely the same based on the different sites of origin. However, both cervical and endometrial cancers are primarily treated with surgery, followed by corresponding radiotherapy and chemotherapy.