There are several causes of body heat. 1. Infectious factors, whether bacterial, viral, pathogenic, microbial, fungal or atypical pathogens, such as mycoplasma and chlamydia, can cause clinical symptoms and manifestations of body heat and fever. 2. The clinical symptoms of hot body will also appear in other, such as allergic symptoms, infectious allergies or other contact allergies. 4, metabolic diseases, such as hyperthyroidism, hyperadrenocorticism, will also appear hot body symptoms. In summer heat stroke, such as heat cramps, heat exhaustion, and pyrexia, there will also be clinical manifestations of burning around the body.