Catcall syndrome is an autosomal disorder in children. The specific cause of the disease is a series of symptoms caused by the deletion of the short arm of chromosome 5 of the autosomal chromosome, or the partial deletion of the short arm of chromosome 5. The clinical name of the syndrome is “cat-call syndrome” because the cry of these children is similar to the cry of a cat. Other clinical manifestations of this type of children include wider eye spacing, smaller head size, rounded face, redness of the medial canthus, penetrating palms, and lower ear position. In addition, some children may have congenital heart disease, and oral examination may reveal cleft palate, as well as other hereditary congenital conditions such as cataracts. Another characteristic of these children is mental retardation, but most of them can grow to adulthood, that is, they can survive to adulthood, although the average life expectancy is still relatively short, but basically to adulthood is still more, specifically cat-call syndrome is named because the cry of the child in infancy and childhood is similar to that of a cat, so it is called cat-call syndrome.