The causes of vomiting can include reflex vomiting such as acute gastritis, central vomiting such as intracranial infection, and vestibular disorders such as labyrinthitis, depending on the mechanism. 1. Reflex vomiting: common acute and chronic gastritis, peptic ulcer and other gastrointestinal and duodenal diseases; acute appendicitis, intestinal obstruction and other intestinal diseases; renal ureteral stones, acute pyelonephritis and so on. 2. Central vomiting: including various encephalitis, meningitis and other intracranial infections, cerebral hemorrhage, cerebral contusion and other neurological diseases and uremia, thyroid crisis, hypoglycemia and other systemic diseases. 3. Vestibular disorder vomiting: generally accompanied by hearing impairment, vertigo and so on. Common causes include labyrinthitis, motion sickness, Meniere’s disease and so on. If there is severe vomiting discomfort, it is recommended to consult a doctor to avoid further dehydration and electrolyte metabolism disorders, under the guidance of the doctor for diagnosis and treatment.