What causes skin cancer

Skin cancer is a very scary cancer with a high incidence rate in the world. Various diseases induced by skin cancer seriously affect our normal life and even endanger our lives. So how should we prevent this disease in our daily life? What is the cause of skin cancer? The first step to prevention is to find the factors that cause skin cancer, because only if we find the cause first can we prevent skin cancer well.

Causes of Skin Cancer:
① Daily exposure and ultraviolet radiation: There is sufficient evidence to support ultraviolet radiation. The interaction between the human body's melanin protection and the immune system function leads to the occurrence of skin cancer. When measuring human skin in sunlight, the parts of the skin that receive the largest amount of 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 Chemical carcinogens: About 100 years after Percivall first described the report of chimney sweeps being prone to scrotal skin cancer, people discovered that workers frequently exposed to arsenides, tar and asphalt are prone to skin cancer. Chemical carcinogens can be divided into two periods, the initial period and the promotion period. The results induced by the initial period are closely related to the limit of exposure to special substances or carcinogens, and their progression is irreversible. Cell changes are related to genetics. The promotion period requires repeated exposure to the contact material and 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, the formation or non-formation of skin cancer.