Skin cancer is a malignant tumor, and knowing the causes of skin cancer is very helpful in preventing it. So, what are the causes of skin cancer ? Regarding this issue, let's ask an expert to introduce to you the causes of skin cancer. 1. Chronic irritation and inflammation are the causes of skin cancer: 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. 2. Daily exposure to the sun and ultraviolet radiation: There is sufficient evidence to support that ultraviolet radiation, the protection of human melanin and the interaction of the immune system function lead to the occurrence of skin cancer. The cause of skin cancer is that the human skin is measured 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 participation of other cancer-promoting factors. 3. Chemical carcinogens: Workers who are frequently exposed to arsenic, tar and asphalt are prone to skin cancer. Chemical carcinogens can be divided into two periods, the initial period and the promotion period. The initial period to the induced results are closely related to the exposure limit of special substances or carcinogens, and its progress is irreversible. Cell changes are related to genetics. The promotion period requires repeated exposure to the contact material, which is related to the interval time. If there is no exposure for a long time, it can still be reversed and no cancer will occur. The interval time between the initial period and the promotion period is very important. There can be two results, that is, skin cancer is formed or not formed. This is one of the causes of skin cancer. The above is the introduction to the causes of skin cancer. It is for your reference only. I believe that everyone has already understood the causes of skin cancer. I hope everyone can do a good job in preventing skin cancer. In addition, if you have any questions about the causes of skin cancer, please consult online experts! |
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