The following are the common clinical causes of arm burning. First, the patient suffers a serious car accident injury, which can cause a large skin tear on the arm and is accompanied by the formation of a local hematoma. If the patient does not clear the wound as soon as possible, it may cause bacterial infection to form an abscess, which is manifested as a burning arm. Patients need to be admitted to the hospital as soon as possible to perform local debridement to remove surface necrotic tissue and subcutaneous fluid and pus accumulation. After the acute inflammation of the arm is controlled, the symptoms of burning can be gradually relieved by strengthening anti-infection treatment. Second, the body encounters serious infections, such as acute obstructive purulent cholangitis, acute purulent appendicitis a large number of bacteria absorbed into the blood, sepsis patients can appear chills, high fever, hot arms. At this time, the blood culture can be extracted and suitable antibiotics can be selected. And as soon as possible to perform surgery to remove the infection in the abdominal cavity, it is possible to control the symptoms of inflammation in the body and relieve the burning arms.