Fever, dizziness and vomiting in seven-year-old children may be related to colds, acute gastroenteritis and meningitis. 1. Colds: Infections such as bacterial and viral infections lead to diseases with mainly respiratory symptoms. Due to the irritation of the gastrointestinal tract by pathogenic bacteria, other cold symptoms such as abdominal pain, vomiting, diarrhea, and fever may be manifested. 2. Acute gastroenteritis: It may be caused by the child eating unclean food, decreased immunity, etc., resulting in pathogenic bacteria such as viruses or bacteria entering the intestinal tract. It can also cause fever, vomiting and dizziness. 3. Meningitis: caused by various biological pathogenic factors such as bacteria, viruses, fungi, rickettsiae, etc. invading the soft meninges and spinal cord membrane. The symptoms of fever, vomiting and dizziness may also be present. In severe cases, the vomiting is projectile vomiting, impaired consciousness and other symptoms. There may be other causes of fever, dizziness and vomiting in seven-year-old children, so it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.