Fever after chemotherapy for ovarian cancer is mostly considered to be caused by infection, tumor fever and adverse reaction of chemotherapy, which should be treated with anti-infection, fever reduction and observation according to the situation. 1. Infection, chemotherapeutic drugs can cause bone marrow inhibition reaction, which leads to lower immunity and cause infection and fever, and antibiotics should be used in time for anti-infection treatment, commonly used drugs include procaine penicillin, ceftriaxone, cefotaxime and so on. 2. Tumor fever, a large number of cancer cells will be necrotic in the process of chemotherapy, and after being absorbed by the human body, fever will appear, but generally low fever needs no special treatment, and it can disappear naturally and get better after a period of time. When the fever persists, symptomatic treatment is needed. 3. Adverse reaction of chemotherapy: chemotherapy drugs may cause fever and other adverse reactions, which can be treated with symptomatic fever-reducing treatment and change of drugs if necessary.