Forehead pain, nausea and vomiting, more than three factors are considered, as follows: First, neurological diseases: such as cerebral hemorrhage, or cerebral edema caused by various causes of meningitis, encephalitis, brain herniation, can be manifested as headache, nausea, vomiting, vomiting is mostly jet, lumbar puncture when intracranial pressure is elevated. Second, acute gastroenteritis: if accompanied by fever, gastrointestinal mucosa congestion and edema, there will be nausea, vomiting, diarrhea and other symptoms. Cerebral vasodilatation occurs during fever and will be accompanied by headache. Third, gastrointestinal colds: Gastrointestinal colds can be caused by viruses and other infections that cause fever, accompanied by gastrointestinal symptoms, and can also occur as described above. When patients have symptoms such as headache, nausea and vomiting, they must seek medical attention and undergo systematic examination to clarify the cause and then give comprehensive treatment to avoid delaying the disease.