Children with fever and vomiting drink water also vomit, may be caused by upper respiratory tract infection, acute enteritis, food poisoning and other reasons. 1. Upper respiratory tract infection: upper respiratory tract infection is a general term for acute inflammation of the nasal cavity, pharynx or larynx, most of them are caused by viral infections, the main clinical manifestations of sneezing, nasal congestion, cough, fever, headache and other symptoms, the severity of the condition may cause severe vomiting and other conditions. 2. Acute enteritis: acute enteritis is a series of intestinal syndrome caused by acute infection of the intestinal tract, mainly manifested as abdominal pain, diarrhea, nausea, vomiting, fever and other symptoms, the child has a fever, vomiting and vomiting, drinking water and vomiting, may be caused by acute enteritis. 3. Food poisoning: food poisoning refers to eating toxic food, or by bacteria, bacterial metabolites and other contaminated food and acute infections caused by toxic diseases, the patient may nausea, vomiting, abdominal pain, diarrhea and other symptoms, some patients may be accompanied by fever, chills, generalized aches and pains, and other systemic symptoms of poisoning. Children with fever and vomiting drink water also vomit, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.