Children’s dizziness, nausea and vomiting may be symptoms of influenza, acute disseminated encephalomyelitis, food poisoning and other diseases. 1. Influenza: referred to as influenza, is an acute respiratory infectious disease caused by influenza virus. The onset of the disease is rapid, with high fever, chills, headache, dizziness, aching limbs, fatigue, etc. It may be accompanied by abdominal pain, nausea, diarrhea, bloating and other digestive tract manifestations. 2. Acute disseminated encephalomyelitis: it is an autoimmune disease characterized by acute inflammatory demyelination that occurs in the brain and spinal cord. About 3/4 of this disease occurs after acute infection or vaccination, so it is also called post-infection encephalomyelitis or post-vaccination encephalomyelitis. Clinical manifestations are varied, with cerebral symptoms predominating, often including headache, dizziness, nausea, vomiting, convulsions, drowsiness, coma and other symptoms. 3 Food poisoning: the main cause of the disease is eating food containing poison and being infected by pathogenic microorganisms such as Salmonella spp, Vibrio parahaemolyticus and Escherichia coli. Affected children will experience headache, dizziness, nausea, vomiting and weakness. There are many causes of dizziness, nausea and vomiting in children, and it is necessary to visit the hospital in time to identify the specific cause.