Dizziness in a 6-year-old child may be related to lack of sleep, or it may be caused by iron deficiency anemia, hypoglycemia and other reasons. 1. Lack of sleep: 6-year-old children who often stay up late to watch cartoons, play mobile games, resulting in insufficient sleep, resulting in the brain did not get enough rest, may cause dizziness, may also be accompanied by mental fatigue, sleepiness and other manifestations. 2. Iron deficiency anemia: some 6-year-old children due to a long period of partiality, picky eating, resulting in inadequate dietary intake of nutrients, easily caused by iron deficiency anemia, resulting in the brain in a chronic state of hypoxia, which may cause dizziness, but also can be accompanied by weakness, pallor and other manifestations. 3. Hypoglycemia: some 6-year-old children may have hypoglycemia, when the hypoglycemic reaction attack, resulting in the whole body tissues and organs can not get enough energy supply, resulting in the brain in a state of ischemia, hypoxia, which may cause dizziness, can be accompanied by sweating, weakness and other manifestations. 6-year-old child dizziness, may also be caused by other reasons, by supplemental sleep, if the dizziness symptoms can not be relieved, should consult a doctor in time to confirm the diagnosis of triggers, to give targeted treatment and conditioning.