Normal blood count and mycoplasma but fever may be related to accumulation of food, viral infection, rheumatic immune disease, tumor and other factors. If you have a normal blood count and mycoplasma but fever, you need to go to the hospital for diagnosis and treatment to avoid delaying the disease. Choose the appropriate treatment according to the cause of the fever. 1. Food accumulation: eating too much too fast, irregular diet and other factors may cause food accumulation, mostly seen in children. The fever is mainly related to the overload of the gastrointestinal tract, which affects the normal regulatory function of the body’s temperature center and may lead to normal blood count and mycoplasma but fever, and may also manifest as abdominal distension, sour and smelly stools, and bad taste in the mouth. Generally, symptoms can be relieved by reducing food intake and eating smaller and more frequent meals. If the fever is serious, it is recommended to use acetaminophen extended-release tablets, ibuprofen extended-release capsules and other non-steroidal drugs for antipyretic treatment under the guidance of a doctor; 2. Viral infection: Decreased resistance, cold and other factors may lead to viral infection due to viral invasion in the human body, its proliferation rate is relatively fast, so after invading the organism, it will lead to an obvious inflammatory reaction, there will be fever, sore throat, coughing sputum and other The symptoms may be normal blood count and mycoplasma but fever may be due to the intracellular infection of the virus, and serological examination is difficult to confirm the diagnosis. Patients can use antiviral drugs, such as injectable penciclovir, injectable acyclovir, etc. under the guidance of a doctor; 3. Rheumatic immune diseases: When rheumatoid arthritis occurs, due to inflammatory stimulation, resulting in increased thermogenesis in the body, body temperature increases, but blood and mycoplasma tests can be normal, i.e., blood and mycoplasma are normal but fever is present. Patients with rheumatic immune diseases can take antibiotics such as amoxicillin capsules, azithromycin tablets, etc. under the guidance of doctors. 4. tumor: it may lead to the upward shift of the temperature regulation point of the thermoregulatory center, stimulating the production and release of pyrogen and tumor necrosis factor by pyrogenic cells in the body, which may cause fever in patients, and the blood routine and mycoplasma can be normal, i.e. the blood routine and mycoplasma are normal but fever. Tumor patients need to go to the hospital in time to confirm the cause of the disease and end the surgery as soon as possible, they can also receive radiotherapy and chemotherapy, common chemotherapy drugs include cisplatin injection, paclitaxel injection, etc.