Clinically, the three main symptoms of epidemic hemorrhagic fever are fever, hemorrhage and kidney damage. Epidemic hemorrhagic fever is an acute, naturally occurring disease caused by hantavirus infection carried by rodents, also known as renal syndrome hemorrhagic fever. The three typical main symptoms of hemorrhagic fever are fever, hemorrhage, and kidney damage. The general incubation period is 2~3 weeks, early clinical manifestations of fever, headache, back pain and orbital pain and other flu-like symptoms, many patients mistakenly think that the flu, take their own cold medicine treatment, which leads to some hemorrhagic fever patient’s condition is misdiagnosed. The fever of hemorrhagic fever is characterized by light temperature <39℃, medium temperature 39-40℃, and more than 40℃ in severe cases; the bleeding is characterized by only pinpoint hemorrhage of skin and mucous membrane in light cases, accompanied by bulbar conjunctival edema and hemorrhage in medium cases, and hemorrhage is obvious in heavy cases, which can be seen as ecchymosis of the skin and bleeding of the cavity. The damage to the kidneys is light poisoning symptoms, mild renal function damage, no shock and oliguria; medium-sized oliguria symptoms are obvious, urinary protein + + +), poisoning symptoms are more severe; heavy-duty is shock and renal function damage is serious, there is persistent oliguria or even anuria. However, atypical clinical manifestations are extremely mild and may consist of fever only, with symptoms subsiding after the fever subsides. Therefore, if there is a history of potential exposure to rodents, it is important to go to the hospital in time when symptoms occur, so as to avoid delaying the disease and causing a greater impact on one's health.