Children six years old always want to vomit, may be caused by improper diet, may also be suffering from disease. 1. If a child has a poor diet, eats cold food, unclean food, or overeats, the symptom of always wanting to vomit will occur, and some children may be accompanied by abdominal distension, abdominal pain, diarrhea and other uncomfortable symptoms. 2. If the child suffers from indigestion or acute or chronic enteritis, the symptom of always wanting to vomit will appear; or if the child suffers from intracranial tumors, intracranial infections and other diseases, also due to the increase of intracranial pressure, resulting in always wanting to vomit performance. Therefore, when the child always want to vomit, take the child to the hospital pediatrics or neurology department to clarify the specific cause of the disease, and to give appropriate treatment for the cause of the disease.