Skin cancer is not contagious.
Skin cancer is a malignant tumor of the skin and its pathogenesis is not a pathogen infection, thus it is not contagious.
Skin cancer refers to malignant tumors originated from different skin cells, including basal cell carcinoma, squamous cell carcinoma, cutaneous lymphoma, malignant melanoma and so on. Its causative factors include long-term ultraviolet irradiation, genetic factors, chemical carcinogens, and radiation. The pathogenesis of infectious diseases is based on the infection of pathogens, and there is no contagion of malignant tumors, thus skin cancer is not contagious.
Although skin cancer itself is not contagious, certain pathogen infections can increase the risk of skin cancer, such as human papillomavirus, EBV, human immunodeficiency virus, etc., and these pathogens can be transmitted to other people through various ways, thus increasing the risk of skin cancer in infected people.
Therefore, it is recommended to maintain good hygiene habits, clean oneself, and pay attention to environmental disinfection when using public bathrooms or swimming pools to avoid the infection of the above pathogens as much as possible and reduce the risk of skin cancer.
It is recommended to go to the hospital in time for consultation and symptomatic treatment under doctor’s guidance.