What causes skin cancer

The best time to treat cancer is in the early stage when cancer cells have not metastasized or spread. Treatment during this period can achieve the best effect of curing cancer. However, due to the hidden nature of skin cancer, the symptoms of early skin cancer patients are extremely subtle. Clinically, it has been found that most skin cancer patients have already reached the middle and late stages when they show obvious symptoms. Here, we remind all friends who are concerned about skin cancer to pay attention.

Common causes of disease include:

① 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. 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 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 who are frequently exposed to arsenic, tar, and asphalt are prone to skin cancer. Chemical carcinogenesis 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 the specific substance or carcinogen, 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 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-induced 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.

④ 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.

⑤ Others: In the immunosuppression stage, the patient's immune system is underactive and skin cancer may occur. The use of immunosuppressants can promote the occurrence of skin cancer. Viral carcinogens: Many viruses can cause cancer in animal hosts, and many subtypes of human papillomaviruses can induce skin cancer in humans.

The above is a brief introduction to "What causes skin cancer?" For people who are related to the pathogenic factors of skin cancer, it is recommended to take preventive measures for skin cancer and receive specific treatment according to the doctor's instructions. I hope that patients can recover soon! If you have other questions about skin cancer, please consult our experts online or call for consultation.

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