Patients with gastroenteritis may have a fever, usually low fever, severe patients may have a high fever, if necessary, can follow the doctor’s instructions to use ibuprofen to reduce fever. 1. Gastroenteritis is caused by pathogenic microbial infections, including bacterial infections, viral infections, parasitic infections, etc., pathogenic microorganisms in the body to spread the spread of the symptoms of fever; most of the patients do not have a serious fever, mainly low fever, a small portion of the patients may have a high fever, which is due to the seriousness of the infection. 2. If the fever is more obvious than 38.5 degrees, you can use ibuprofen, acetaminophen and other antipyretic and analgesic drugs under the guidance of the doctor, which can achieve the purpose of reducing fever. Gastroenteritis can lead to dehydration, intestinal perforation and other complications in severe cases, it is recommended that patients actively seek medical attention and follow the doctor’s instructions for targeted treatment.