Phenylketonuria is an amino acid metabolism disorder that primarily affects infants and young children. It is characterized by the inability of phenylalanine to be normally metabolized in the body, leading to its accumulation and potentially causing intellectual disability and other health issues. Treatment primarily involves dietary control to reduce the intake of phenylalanine, and may require rehabilitation training. Currently, there is no surgical treatment method.

This article provides information about congenital preauricular fistula, including its causes, symptoms, and treatment methods.

A child with hand, foot, and mouth disease has white spots on the mouth and hands and feet, with low fever, decreased appetite, facial swelling, and needs to seek emergency medical attention.