The main causes of dizziness and vomiting in the morning are the following: 1. If a pregnant woman has dizziness and vomiting in the morning, consider it to be caused by a pregnancy reaction and do not be too nervous. 2. If the patient has dizziness and vomiting in the morning, if it is episodic and associated with a change in the position of the head, accompanied by a brief rotation of vision, consider it to be caused by otoliths. If the patient has a history of hypertensive cerebral arteriosclerosis, it may be related to insufficient blood pressure and cerebral blood supply, which can be clarified by measuring blood pressure and improving transcranial Doppler examination. At the same time, to improve the risk factors related to cerebral atherosclerosis, to check the blood lipids, blood sugar, blood rheology, to see whether the patient has a high-fat, high-viscosity state of the blood and lead to insufficient blood supply to the brain.