Analyze the specific causes of skin cancer

Skin cancer generally has a higher incidence rate among Caucasians, and it often happens around us. So what are the causes of skin cancer ? The following is a detailed answer from relevant experts.

① Daily exposure and ultraviolet radiation: There is sufficient evidence to support ultraviolet radiation. The interaction between the protection of human melanin and the immune system function leads to the occurrence of skin cancer. Measure 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 occur in these parts. The carcinogenic mechanism of ultraviolet rays. Perhaps the photochemical effect changes the structure of cell DNA. At the same time, it destroys the active antigen structure on the surface of lymphocytes. Reduce the body's immune function. With the joint participation of other cancer-promoting factors, skin cancer occurs. This is the most common cause of skin cancer.

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 who were frequently exposed to arsenic, tar and asphalt were prone to skin cancer. Chemical carcinogenesis can be divided into two periods, namely the initiation period and the promotion period. The results from the initiation period are closely related to the exposure limit of the specific substance or carcinogen. Its progress is irreversible. The cause of skin cancer is 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 initiation period and the promotion period is very important. There can be two results, namely the formation or non-formation of skin cancer.

③ Ionizing radiation: In the past, skin cancer occurred on the basis of radiation dry skin disease caused by radiation workers’ neglect of protective measures. In recent years, due to the improvement of radiation equipment and the progress of radiation technology, especially the strengthening of various protective measures, occupational skin cancer has basically disappeared. However, some patients who received radiotherapy still develop skin cancer in the radiation field after several years. This is also one of the common causes of skin cancer.

The above is an introduction to the causes of skin cancer. I believe everyone should have a certain understanding of skin cancer. If you want to know more about skin cancer, please consult online experts.