Diseases and Conditions

Legg-Calve-Perthes disease

Risk factors

Risk factors for Legg-Calve-Perthes disease include:

  • Age. Although Legg-Calve-Perthes disease can affect children of nearly any age, it most commonly begins between ages 4 and 10.
  • Your child's sex. Legg-Calve-Perthes is about four times more common in boys than in girls.
  • Race. White children are more likely to develop the disorder than are black children.
  • Genetic mutations. For a small number of people, Legg-Calve-Perthes disease appears to be linked to mutations in certain genes, but more study is needed.