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What is the most common form of dwarfism, and what are its features?

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Achondroplasia is the most common form of dwarfism. It happens in 1 out of 26,000 to 40,000 babies. People with achondroplasia have a relatively long trunk and shortened upper parts of their arms and legs. Other features include:

  • a large head with a prominent forehead
  • a flattened bridge of the nose
  • protruding jaw
  • crowded and misaligned teeth
  • forward curvature of the lower spine
  • bowed legs
  • flat, short, broad feet
  • double-jointedness

From: Dwarfism WebMD Medical Reference

SOURCES: Texas Woman's University: "Dwarfism." Little People of America: "Frequently Asked Questions." Nemours Foundation: "Dwarfism." March of Dimes: "Quick References: Fact Sheets: Achondroplasia." The University of Delaware: "Dwarfism."




Reviewed by Renee A. Alli on October 20, 2018

SOURCES: Texas Woman's University: "Dwarfism." Little People of America: "Frequently Asked Questions." Nemours Foundation: "Dwarfism." March of Dimes: "Quick References: Fact Sheets: Achondroplasia." The University of Delaware: "Dwarfism."




Reviewed by Renee A. Alli on October 20, 2018

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What is spondyloepiphyseal dysplasias (SED) and what are its features?

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