What are the causes of skin cancer?

What are the causes of skin cancer? Skin cancer is a common disease in our country, and there are various methods to treat the skin. In order to better treat skin cancer, we have to know the causes of skin cancer. Some people may not be very clear about it. So for this problem, let's ask experts to give us a detailed introduction to the causes of skin cancer.

Causes of skin cancer:

First, the causes of skin cancer include chemical carcinogens : About 100 years after Percivall first described the report of chimney sweeps being prone to scrotal skin cancer, people discovered that workers who frequently come into contact with arsenic, tar, and asphalt are prone to skin cancer. Chemical carcinogenesis can be divided into two periods, the initiation period and the promotion period. The initiation period to the induced results are closely related to the exposure limit of special substances or carcinogens, and its progress is irreversible, and 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 between the initiation period and the promotion period is very important, and there can be two results, namely the formation or non-formation of skin cancer.

Second, daily exposure to the sun and ultraviolet radiation are the causes of skin cancer: 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. 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, and squamous cell carcinoma almost all occur 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.

Third, 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, which is one of the causes of skin cancer.

The above is a detailed introduction by experts on the causes of skin cancer. I hope the above content can help you. If you have more questions about skin cancer, you can click on our related website for consultation. Finally, I wish you good health.