The causes of confusion and vomiting may be as follows: 1. Confusion and vomiting clinically refers to the phenomenon of fuzzy consciousness and vomiting, which is common when there is increased intracranial pressure or brain hernia formation, because when there is increased intracranial pressure or brain hernia formation, it will cause serious damage to the neurological function of the brain, while brain cells have also formed serious damage, and this damage is irreversible. The damaged brain nerves or brain cells have lost their normal innervation and regulation conduction functions, which will lead to uncontrolled vomiting reflexes, so vomiting will occur, while brain cells and nerves damaged too severely will appear confused, also known as confusion. 2, because there is brain hemorrhage, cerebral infarction or cerebrovascular embolism and other common cerebrovascular disease, because when there are several types of diseases mentioned above, it can also cause Brain dysfunction, brain nerve brain cell damage, causing cortical sensory, conduction and innervation dysfunction, resulting in confusion and vomiting.