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One in 10 babies (9.6%) was born prematurely in the United States in 2016.

Nephrotic syndrome can occur at any age but is most common between the ages of 18 months and 8 years. Boys are affected more often than girls. A child may come to the child care or school with the diagnosis or may develop it while enrolled.

There are many types of neurocutaneous syndromes (syndromes that include skin findings). The most common is neurofibromatosis (NF). There are 7 types of NF. Although they are all different, they all have skin and neurologic findings. Neurofibromatosis type 1 (NF1) is the most common type, and, while

More than 100 specific conditions have been identified that can cause short stature. Achondroplasia occurs in people of all races and with equal frequency in males and females, and it affects about 1 in every 26,000 children. An estimated 10,000 individuals in the United States have achondroplasia.

Marfan syndrome is an inherited condition. It affects the tissues that connect parts of the body.

Prader-Willi syndrome (PWS) is a genetic condition that affects the brain and causes newborns and young infants to be weak and slow to gain weight but shifts to causing excessive hunger and weight gain in toddlers. It affects boys and girls equally.