Normal fever is not normally contagious, but if it is caused by influenza or other pathogens, it may be contagious. Fever is the body’s response to a foreign pathogen or physical or chemical stimulus. Fever itself is not contagious, but if it is caused by influenza virus, new coronavirus infection, etc., it may spread through air droplets, etc. In order to avoid the spread of the disease, it is generally necessary to stay put and wait for health care workers to come to your home to deal with the disease and treat it. If the fever is caused by AIDS, hepatitis, syphilis, etc., it may be transmitted through mother-to-child, blood or sexual contact. It is recommended that patients should pay attention to the infectiousness of the disease causing the fever, and to block and isolate the disease according to the transmission route. It should be noted that ordinary fever is not contagious, but it is difficult for the general public to distinguish whether it is ordinary fever or fever caused by viral infection. Therefore, if patients have fever symptoms, they should go to the fever clinic of the hospital in a timely manner, and after the nucleic acid test, the doctor will provide further treatment, and should not blindly use medication on their own.