If dizziness occurs after the New Crown vaccine, it is usually considered to be related to emotional tension and adverse reactions to the vaccine, etc. The specific analysis is as follows: 1. Emotional tension: If dizziness occurs just after the New Crown vaccine, it may be due to the temporary dizziness caused by the rise in blood pressure of the body due to the high emotional tension of the patient during the injection. 2. Adverse reactions to the vaccine: According to the results of clinical trials, some patients may suffer from itching, redness and swelling at the vaccination site as well as dizziness, fever and other adverse reactions after receiving the new crown vaccine due to individual differences, but the symptoms are generally mild and do not require much treatment, and can gradually subside after 2-3 days. If the dizziness is very serious or does not subside, please seek medical attention and report the situation to the vaccination unit. In addition, if the dizziness is severe or persists for a long time, it may not be caused by the vaccination but by a cold, low blood pressure, cervical spondylosis or inner ear disease, so it is recommended to go to the hospital for treatment under the guidance of a doctor.