Analyzing the causes of several common skin cancers

With the advancement of medical research, there is a clearer view on the causes of skin cancer, which is very beneficial for the treatment of skin cancer. So what are the common causes of skin cancer ? Let's talk about the common causes of skin cancer.

Common causes of skin cancer include:

① Daily exposure to the sun and ultraviolet radiation: It is the most common cause 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. 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.

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 are frequently exposed to arsenic, tar and asphalt are prone to skin cancer, which is also a common cause of skin cancer. Chemical carcinogenesis can be divided into two periods, the initial period and the promotion period. The results from the initial period 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, and there can be two results, namely the formation or non-formation of skin cancer.

③ Ionizing radiation: In the past, skin cancer was caused by radiation workers who neglected protective measures, which led to radiation dry skin. In recent years, due to the improvement of radiation equipment and radiation technology, especially the strengthening of various protective measures, occupational skin cancer has basically disappeared. However, some patients who have received radiotherapy may still develop skin cancer in the radiation field after several years. This is also a common cause of skin cancer.

The above is an introduction to the common causes of skin cancer. I hope it will be helpful to you. For more questions about the causes of skin cancer, you can consult our online experts, who will give you detailed answers.