Severe anemia does not directly cause fever, but may cause fever due to decreased resistance. 1. In patients with anemia, the temperature of the fever is usually not too high, and usually stays around 38℃, most of the time at 37.5℃. 2. But there are individual patients with anemia, may also appear high fever phenomenon, more than 38 ℃ or even more than 39 ℃, may be due to the patient’s severe anemia resistance is low, and lead to the infection of the fever. Because fever is mostly caused by bacterial, viral and mycoplasma infections, it is necessary to consult the appropriate hematology or infection department in time, and use targeted treatment measures under the guidance of physicians. If it is a viral infection, you can take oseltamivir and so on. If it is a bacterial infection can take amoxicillin, cefaclor and other drugs treatment. Drugs need to be used under the guidance of a doctor, avoid self-medication.