Fecal appendicitis infusion well, the body will be fever does not exclude is due to the condition is not completely recovered, abdominal cavity residual accumulation of pus caused, but also does not exclude is due to the surrounding temperature is higher. 1. the condition is not fully recovered: fecal appendicitis patients after infusion well, but still have fever, may be due to the condition is not fully caused, the patient can be under the guidance of the doctor to continue treatment to alleviate the symptoms; 2. Abdominal residual accumulation of pus: patients with fecalith appendicitis are well after treatment. However, it is not excluded that the exudate is more, unabsorbed parcel, the formation of local abscess, there may be the phenomenon that the patient reappears to be feverish; 3. Higher surrounding temperature: in daily life, if the body is located in the environment with higher temperature, the phenomenon of body fever may also occur. Patients with fecal appendicitis who are well on fluids but will have fever in the body may also be related to other causes.