Oral cancer is caused by what?

Written by Wang Ji Zhong
Internal Medicine
Updated on September 03, 2024
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Oral cancer poses a significant threat to human life, and it is important to pay attention to early oral diseases to achieve the goal of early detection and treatment. There are many causes of oral cancer, mainly including the following points: The first is the patient's poor dietary habits, such as long-term alcohol abuse and smoking. Eating hard foods frequently can also cause chronic inflammation. Moreover, neglecting oral hygiene and not having the habit of brushing teeth morning and night can lead to the growth of bacteria and fungi, causing inflammation in the mouth, which can induce oral cancer. Another cause is prolonged irritation of the oral mucosa by inflamed gums, the roots of teeth, and unsuitable dentures, which can produce chronic ulcers and carcinogenesis. A deficiency in vitamin A is also somewhat related to the development of oral cancer.

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Can oral cancer be cured?

Once oral cancer is diagnosed, it is confirmed as malignant, and only a certain proportion of patients with early-stage disease can be cured. After the diagnosis of oral cancer, surgery is the preferred treatment option. It involves the removal of the clearly defined tumor within the mouth, and if necessary, dissection of the lymph nodes in the neck. After radical resection, adjunctive radiotherapy and chemotherapy are commonly used to improve disease control. Some early-stage patients can be cured after undergoing the above treatments. However, when oral cancer progresses to a certain extent, even after radical surgery and postoperative adjuvant radiotherapy and chemotherapy, the risk of recurrence and metastasis remains high, making it incurable.

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How should cervical lymph node metastasis of oral cancer be treated?

Patients with lymph nodes, if they experience short-term lymph node enlargement. It could potentially be a symptom of metastatic cancer of the lymph nodes, typically manifested in cancers of the nose, pharynx, lung, and esophagus. If the condition is severe, it may cause pain. If the disease spreads to the ear, a comprehensive examination of the patient is still necessary to find the root of the disease. Once the patient's disease begins to metastasize, it indicates that the cancer has reached an advanced stage, and it is recommended that the patient undergo comprehensive treatment with radiotherapy and chemotherapy. If it is non-small cell lung cancer, targeted drug therapy is recommended, but it is generally advised to perform a targeted drug test in advance. If the mutation allows, it is permissible to take the medication; if there is no mutation, it is better not to use it.

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Can oral cancer be transmitted through saliva?

Oral cancer, unlike some other cancers, cannot be transmitted to others through bacteria or pathogens via saliva or other means. Thus, oral cancer is not contagious. The cancer cells in oral cancer can only metastasize within the individual themselves, causing proliferation and spreading of the disease. Therefore, even if it leads to cancer in other parts of the body, it is not transmissible to others. Based on these symptoms, living or sharing meals with someone suffering from oral cancer does not pose a risk of contagion through saliva.

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Can oral cancer be treated?

Oral cancer poses a significant threat to human life, and it is crucial to detect and treat it early for optimal outcomes. Individuals over the age of 40, especially those frequently experiencing oral ulcers, particularly with symptoms of bleeding and pain, or when there is a growth at the base of the ulcer, should immediately seek hospital examination for timely pathological diagnosis. Early detection followed by prompt surgery, and deciding whether further radiotherapy or chemotherapy is needed based on the severity of the condition, can achieve the best treatment results. Therefore, oral cancer is treatable and can be cured if detected early.

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Does oral cancer cause an increase in carcinoembryonic antigen?

When oral cancer occurs, there is a possibility that carcinoembryonic antigen (CEA) levels may be elevated. Among the current mainstream tumor markers, CEA is the most broadly applicable. Elevated levels of CEA can occur in a variety of tumors. However, an increase in CEA does not necessarily mean that oral cancer is present. Due to the relatively superficial location of the oral cavity, specific physical examinations of the mouth, or direct visualization of the inside of the mouth using auxiliary instruments, can be used to detect lesions associated with oral cancer. Once oral cancer is diagnosed, the primary treatments are surgery and radiotherapy. After surgery and radiotherapy, adjunctive chemotherapy can be used to improve treatment efficacy.