Skin cancer is not common in our country, but this makes it easier for us to ignore the occurrence of skin cancer. Some moles, skin erythema, skin ulcers, etc. may be early symptoms of skin cancer. So, what are the early symptoms of skin cancer? What are the early symptoms of skin cancer? 1. Skin cancer has a low incidence rate in China, but it is one of the common malignant tumors among white people, exceeding all other malignant tumors combined. Among skin cancers, basal cell carcinoma is the most common, accounting for more than 60%. Regardless of surgery, radiotherapy or other treatment methods, they all have good effect on skin cancer, and the cure rate can be over 90%. 2.Skin cancer is mostly manifested as erythematous or papular lesions slightly above the skin surface, and the surface is often accompanied by scaly flaking or scab formation, and the symptoms are similar to benign skin diseases such as psoriasis, eczema and inflammation. Further development of skin cancer lesions will show certain characteristic signs, such as a shiny, translucent papule-like nodule with oozing blood and dilated capillaries on the surface of skin cancer patients. Or a scar-like fibrous plaque with a smooth surface, without obvious capillary dilation, ulceration or elevation. Or there are black, fused dots within the lesion. These are the early symptoms of skin cancer. 3.Squamous cell carcinoma is often transformed from keratosis, mucosal leukoplakia and other precancerous diseases. It grows faster and forms ulcers as early symptoms of skin cancer. Some skin cancer patients can be nodule-like or cauliflower-like, with smaller invasion to the deep and movable base; some are butterfly-like, with more obvious infiltration to the deep and large destructive, often involving bones. Patients with skin cancer may be accompanied by malodor and pain. Regional lymph node metastasis is mostly seen. The authors encountered a giant squamous cell carcinoma of the head, which has incomparable malodor, more purulent secretions and easy bleeding; lymph node metastasis of the neck occurs. Since the early symptoms of skin cancer only spread locally and are not likely to spread to other organs with blood and lymph, early skin cancer usually does not cause death. Skin cancer patients have irregularly shaped lumps and discolored spots on the skin; lumps and discolored spots with jagged edges; lumps with mottled colors, black, brown, red and white; diameter more than 6 mm; ulceration and bleeding. These are also the early symptoms of skin cancer. If found, timely diagnosis and treatment are needed. How to effectively prevent skin cancer 1. In daily life and work, long-term exposure to harmful chemicals such as asphalt, tar, arsenicals, benzopyrene, etc. should be avoided as much as possible, as these chemicals have strong carcinogenic properties. For workers who must be exposed to harmful chemicals for a long time because of their work, especially good labor protection is necessary. 2.Consciously protect our living environment by not lighting tires, asphalt, plastics, wire skins and other substances at will. 3.Prevent prolonged skin exposure to the sun. Medical doctors found that ultraviolet radiation can induce skin cancer, and farmers, fishermen and field workers who work under the sun for a long time are much more likely to have skin cancer than indoor workers. Therefore, when working or playing outdoors, you can apply some sunscreen and other items. 4. Pay attention to ionizing radiation, which is mainly for radiation workers. 5.Actively treat the primary disease. Those who suffer from precancerous lesions such as actinic keratosis and staining dry skin disease should be treated as early as possible, so as to nip skin cancer in the bud. 6.Strengthen physical exercise and improve physical quality, as Chinese medicine says: “If the righteousness exists inside, evil cannot dry up.”