Fainting after standing up may be caused by physiological factors, low blood pressure, anemia and other factors, which can be alleviated by physical methods, dietary adjustments, medication and other methods to alleviate the symptoms of fainting. 1. Physiological factors: children squatting for a long time after standing up quickly fainted easily, this is a normal physiological reaction, after resting for a period of time will be relieved. 2. Low blood pressure: emotional excitement, change of body position and so on may cause low blood pressure, the child fainted due to low blood pressure, you can give the child to drink some salt water to relieve the discomfort, parents usually need to guide the child to exercise, enhance physical fitness. 3. anemia: anemia is easy to make the brain blood supply is not enough to cause the symptoms of fainting, if the child fainted due to anemia, parents can give the child to eat iron food, such as animal liver, lean meat, etc., to help the child to reduce the symptoms of anemia; can also be used under the guidance of the doctor, such as dextrose, ferrous sulfate tablets, etc., to improve the child’s symptoms of dizziness. When the child faints, parents should take the child to the hospital in time, under the doctor’s advice to carry out relevant examinations, to clarify the cause of the disease, symptomatic treatment. All of the above medications should be used under the guidance of a doctor, avoid self-medication.