Inflammation does not necessarily cause fever. If the body is relatively lightly infected and also has a strong resistance, having inflammation will not cause fever. If the body has low immune function, weak resistance or heavy infection, having inflammation will cause symptoms of fever in the body. The reason for the fever is that the body is not infected with the virus or bacteria, and the infection of mycoplasma and chlamydia can also cause inflammation, and non-infectious diseases can also cause fever due to sterile inflammation.