The causes of dizziness and nausea at the same time are as follows: 1. Brain diseases: for example, infarction, hemorrhage, transient ischemic attack in the posterior circulation, or occupying position, the patient can have dizziness and nausea, and in severe cases, visual rotation can also occur, or numbness and weakness of limbs, etc., and the diagnosis can be confirmed by CT, MRI, and cerebral vascular examination; 2. Vestibular migraine: dizziness and nausea at the same time, can also be seen in vestibular migraine, the patient mainly has dizziness, headache, nausea, and in severe cases, vomiting. For patients with vestibular migraine, some of them can be accompanied by photophobia and tearing, and symptomatic analgesic treatment can be given; 3, gastrointestinal diseases: dizziness and nausea at the same time, clinically, can also be seen in some patients with gastrointestinal diseases, such as gastritis of the digestive system, Gastric ulcer or digestive system of the occupation, the patient can appear nausea, poor eating, which leads to anemia and dizziness, the treatment should be directed at the digestive system of the disease for systematic treatment. Dizziness and nausea can also be seen in some patients with diarrhea, diarrhea due to insufficient blood volume, the patient can appear dizziness, diarrhea after the gastrointestinal tract is in a state of stress, which can be accompanied by nausea, do not like to eat, as well as gastrointestinal flora disorders, gastrointestinal peristalsis weakened and other manifestations; 4, psychological factors: dizziness, nausea, clinically, can also be seen in some of the psychological factors lead to, in particular, some adolescents can appear Anorexia, dizziness, fatigue symptoms, for this kind of psychological cause of dizziness, nausea, can be psychological counseling and other treatments.