Children who drink water and vomit, but also fever may be gastrointestinal cold, acute gastroenteritis, meningitis and other diseases. 1. gastrointestinal cold: this disease is mainly caused by respiratory syncytial virus, adenovirus and other viral infections, the main symptoms are nausea, vomiting, fever, diarrhea, headache, etc., if the disease is serious, the child can be present in the drink water vomit, but also fever performance. 2. Acute gastroenteritis: the main cause of this disease is pathogenic microbial infections, such as rotavirus, norovirus, Escherichia coli, Campylobacter, etc., but also with seafood allergies, heavy metal poisoning, malnutrition and other factors. Common symptoms include abdominal pain, diarrhea, fever, nausea, vomiting, etc. Some children may vomit when drinking water and have fever. 3. Meningitis: This disease may be caused by viral infections such as coxsackievirus and echovirus, or pathogenic bacteria such as Streptococcus pneumoniae and Mycobacterium tuberculosis, and is often triggered by factors such as immunocompromise, poor nutrition, and cold weather, resulting in vomiting, fever, and other symptoms, and in some cases, children will vomit even when they drink water. The child vomits with water and has a fever, there may be other reasons, it is recommended to go to the hospital in time, complete the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.