The symptoms of dizziness every afternoon, to consider the following possibilities: First, consider whether the patient’s sleep is sufficient, if the patient’s daily sleep is not very sufficient, often stay up late, then in the afternoon there may be dizziness, sleepy symptoms. Second, some patients have dizziness in the afternoon, should also consider whether there is a fluctuation of blood pressure, this time we should measure a blood pressure, observe whether the blood pressure is increased this possibility, if the blood pressure in the afternoon, then consider whether the patient’s oral antihypertensive drugs, the effect of the patient’s blood pressure can not be controlled in the afternoon caused by the blood pressure, then it should be replaced with antihypertensive drugs or increase the other antihypertensive drugs to combine the application. Third, the symptoms of dizziness in the afternoon, to consider whether there are seasonal changes, if the patient is a summer dizziness symptoms, and may be more sweat in the afternoon, the weather is hotter, can be due to insufficient blood volume caused by low blood pressure, and dizziness symptoms. Fourth, also consider the cervical spine problems, sometimes cervical spondylosis can also lead to dizziness symptoms.