Causes of facial skin cancer

Skin cancer is a type of malignant tumor that originates from the ectoderm. Squamous cell carcinoma and basal cell carcinoma are the most common and are prone to occur in exposed areas such as the head, face, neck, and back of the hands. They are also seen in the oral mucosa, lips, tongue, and vulva. The incidence of squamous cell carcinoma is the highest, while the incidence of basal cell carcinoma is relatively low. There are many causes of the disease. Let's briefly talk about the causes of facial skin cancer.

Common causes of disease include:
1. Daily exposure to the sun and ultraviolet radiation: There is sufficient evidence to support ultraviolet radiation. The interaction between the body's melanin protection and the immune system function leads to skin cancer. When measuring human skin in sunlight, the parts of the skin that receive the most ultraviolet rays are the head, face, back of the neck, and hands. Squamous cell carcinoma almost all occurs in these parts. The carcinogenic mechanism of ultraviolet rays may be that the photochemical effect changes the structure of cell DNA, while destroying the active antigen structure on the surface of lymphocytes, reducing the body's immune function, and leading to the occurrence of skin cancer with the joint participation of other cancer-promoting factors.
2. Ionizing radiation: In the past, skin cancer occurred on the basis of radiation-induced dry skin disease caused by radiation workers' neglect of protective measures. In recent years, due to the improvement of radiation equipment and the advancement of radiation technology, especially the strengthening of various protective measures, occupational skin cancer has basically disappeared. However, cases of skin cancer in the radiation field can still be seen in some patients receiving radiotherapy after several years.
3. Chronic irritation and inflammation: Malignant skin tumors can occur and develop in scars, chronic ulcers, fistulas, and sinus tracts. Some Asian people are addicted to chewing tobacco or betel nuts, so squamous cell carcinoma is prone to occur in the mouth or lips.
5. Others: During the immunosuppression stage, the patient's immune system is underactive and skin cancer may occur. The use of immunosuppressants can promote the occurrence of skin cancer. Viral carcinogens. Many viruses can cause cancer in animal hosts. Many subtypes of human papillomaviruses in humans can induce skin cancer.
Avoid excessive direct sunlight and exposure in daily life, use sunshade tools, and avoid excessive exposure to ultraviolet rays, x-rays and other rays. Active treatment and regular inspection of chronic ulcers, chronic inflammation and mucosal leukoplakia that cannot be cured for a long time will help prevent the occurrence of skin cancer.