3 of the Most Common Types of Dwarfism

Achondroplasia: The most common form of dwarfism, achondroplasia in Australia affects approximately 1 in 25,000 babies and is evident at birth. People with achondroplasia have relatively long trunk and shortened upper parts of their arms and legs. Other features of achondroplasia 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
  • trident hands – hands are short with stubby fingers with a separation between the middle and ring fingers


Picture: Actor – Peter Dinklage
You may have seen him in the Movie X-Men Days of Future Past as Dr Bolivar Trask released in 2014 or on the TV Series Game of Thrones as Tyrion Lannister





Trident Hand

Trident Hand

Spondyloepiphyseal Dysplasia (SED): A less common form of dwarfism, SED affects approximately one in 95,000 babies. Spondyloepiphyseal Dysplasia refers to a group of conditions characterised by a shortened trunk, which may not become apparent until a child is between ages 5 and 10. Other features can include:

  • Club feet
  • Cleft palate
  • Severe osteoarthritis in the hips
  • Weak hands and feet
  • Barrel-chested appearance


Picture: Actor – Warwick Davis
You may have seen him in the Movies Willow as Willow or Harry Potter and the Philosophers Stone as Professor Filius Flitwick and Griphook






Diastrophic Dysplasia: A rare form of dwarfism, diastrophic Dysplasia occurs in about 1 in 100,000 births. People who have it tend to have shortened forearms and calves (this is known as mesomelic shortening). Other signs can include:

  • Deformed hands and feet
  • Limited range of motion
  • Cleft palate
  • Ears with a cauliflower appearance

matt-roloffPicture: Matt Roloff
You may have seen him in the TLC Reality TV Series Little People, Big World





1 Response to 3 of the Most Common Types of Dwarfism

  1. Owen Fisher says:

    I have a nephew with Acondroplasia, I love him a lot, keep extremely strong and you will overcome the bullies

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