Is it normal to have a fever after surgery? It is common to run a low-grade fever after surgery. However, in some cases, fever can be an indication of dehydration, and fluids should be increased. If fever persists or goes above 102º F, you should contact Dr. Gergits. Lucy Randall2020-09-17T03:01:45-07:00September 17th, 2020|General|