Skin Cancer Research

Common causes are:

 

① the daily exposure and ultraviolet radiation: there is sufficient evidence to support the ultraviolet radiation in human melanoma protective interaction with the immune system has led to the occurrence of skin cancer in the determination of human skin in sunlight the skin to receive the largest part of the UV Face the head of hand back of the neck squamous cell carcinoma occurred in almost all of these areas of cancer-causing ultraviolet photochemical mechanism of the role may be to change the structure of the cell DNA at the same time destroyed the activity of lymphocyte surface antigen structure of reduced immune function other factors in the promoter of the common participation of the occurrence of skin cancer lead to chemical carcinogens

 

②: Since the first description of Percivall chimney sweep made the workers scrotum skin cancer around the year after reports found that frequent contact with people arsenides tar and asphalt workers vulnerable to skin cancer, cancer-causing chemicals that can be divided into two periods with the beginning of the beginning period to help the long-term results caused by exposure to specific substances or carcinogenic substances is closely related to the limits of its irreversible genetic changes in cells of the help repeatedly exposed to long-term contacts with the interval time for a long time if not exposed to non-occurrence of cancer can be reversed to start with the help of long-term importance of the interval may be the formation of two kinds of results that the formation of skin cancer or non-ionizing radiation

 

③ : In the past, long-term workers from the radiation protection measures because of neglect caused by radioactive dry skin disease based on the occurrence of skin cancer in recent years due to improvements in radiation equipment and radiation technology in particular, the protective measures strengthening occupational skin Basically, cancer has become extinct but some patients received radiotherapy After a number of years in the radiation field occurred in the cases of skin cancer can be met

 

④ chronic stimulation and inflammation: malignant skin tumors can occur with the development of chronic ulcers in the formation of scar sinus fistula of the Some parts of the Asian population tobacco or betel nut chewing habit it is part of the mouth or lips squamous cell carcinoma prone to

 

⑤ Others: immune suppression in patients with stage immune system dysfunction can occur, such as skin cancer, immunosuppressive drugs can lead to the application of skin cancer caused by the occurrence of virus Many viruses carcinogen in animal hosts can cause cancer in humans, many of the subtypes of HPV-induced skin cancer can be