Appendicitis will appear fever dizziness and nausea symptoms, but fever dizziness and nausea symptoms are not necessarily appendicitis. When the appendix is inflamed, the surrounding inflammation may stimulate the nerves, thus causing nerve reflexes that reach the central nervous system and lead to dizziness, nausea and other clinical manifestations, and appendicitis is a kind of infectious disease, there may also be fever. However, the typical manifestations of appendicitis are metastatic right lower abdominal pain, Mai’s point tenderness and signs of peritoneal irritation. The pain usually attacks in the upper abdomen, gradually shifts to the periumbilical region, the location is not fixed, and the pain shifts and is confined to the right lower abdomen after 6 to 8 hours. Laboratory tests such as routine blood tests, abdominal X-ray, CT examination and ultrasonography are also usually needed to confirm the diagnosis. Fever, dizziness and nausea may also be due to various other infections, increased intracranial pressure and inner ear inflammation, which require further investigations to confirm the diagnosis, such as electroencephalogram, lumbar puncture and other tests. It is recommended that the patient go to the hospital and have the doctor confirm the diagnosis based on the medical history and relevant examinations, and treat the disease promptly.