Frostbite is easy to get, in addition to environmental factors, but also with daily care and personal constitution. 1. Environmental factors: the formation of frostbite is directly related to factors such as low ambient temperature and high humidity. In the case of low ambient temperature, it will affect the local blood circulation, and frostbite will easily be formed when the blood circulation is impaired. 2. Daily care: not paying attention to the cold in daily life, long-term cold environment, will directly affect the local blood vessel contraction and diastole, in the long run will easily lead to frostbite. 3. Individual physique: relatively speaking, underweight people, women, etc., the incidence of frostbite is a little higher than other groups. For people with Raynaud’s disease or autoimmune diseases (such as lupus erythematosus, etc.), the chances of developing frostbite will also increase significantly. Frostbite is prone to more factors, it is recommended that patients go to the regular hospital in a timely manner to clarify the diagnosis, standardized treatment under the guidance of the doctor.