For infants with frequent fever, pay attention to the following reasons: 1. repeated respiratory infections, children are more afraid of heat, parents tend to overdress their children, cover too much, children sweat and then easily appear respiratory infections. 2. pay attention to the child’s immune problems, some children have vitamin D deficiency, anemia, iron deficiency is serious, may lead to a decline in the child’s immunity, there are easy to repeated infections, fever. 3. 3, to exclude special diseases, such as children sweating, night sweats more, or family history of contact with tuberculosis, also does not exclude the problem of tuberculosis.