Children who want to vomit but can’t spit it out may be due to digestive system diseases, central diseases, vestibular disorders and other reasons. 1. Digestive system diseases: such as reflux esophagitis, gastric reflux can occur, resulting in acid reflux, heartburn symptoms, may appear to want to vomit and can not spit out the phenomenon. 2. Central diseases: such as encephalitis, which manifests as blurred consciousness, fever, nausea, vomiting, and even seizures and mental behavioral abnormalities. 3. Vestibular disorders: such as labyrinthitis, which may manifest as nausea, vomiting and other symptoms, accompanied by hearing impairment, vertigo and other symptoms. Parents are advised to take their children to the hospital in time to clarify the cause of the disease and standardize the treatment under the guidance of the doctor to avoid delaying the condition.