Children fall on the head vomiting, and also appeared headache, nausea, drowsiness and other adverse reactions, on behalf of the intracranial damage may be, if only but temporary vomiting, and eating milk and good mental state, generally not a big problem. 1. Vomiting after a fall on the head may be caused by pain or prolonged crying, if the symptoms are relatively single, and there are no other symptoms of discomfort, continue to observe. 2. If the child not only has vomiting, but also accompanied by drowsiness, nausea, irritability and other adverse reactions, it is necessary to go to the hospital for further intracranial CT examination to determine whether there is a concussion.