Fever is not hot on the body, it may be normal, it may be caused by low fever, blood redistribution and so on. 1. Low fever: Measuring the body temperature in the armpit over 37.2℃ without exceeding 38℃ belongs to the state of low fever, touching the surface of the body doesn’t feel hot, but it is inaccurate to rely on touching the skin alone to determine whether there is fever or not. 2. Blood redistribution: The blood of the whole body may be redistributed to a certain extent, and the blood of the endings may be shunted to the central organ area, so when you have a fever, you may have a hot head, but your hands and feet may be cold. Fever is just a symptom and may be caused by upper respiratory tract infection, urinary tract infection, lung infection and many other reasons. If you have fever, it is recommended that you seek medical attention to identify the cause and follow the doctor’s instructions for standardized treatment.