In children who have achondroplasia, there is a mutation in their DNA that disrupts signaling between certain proteins in the body. There are two different signaling pathways in your body ...

Caitlin Hellyer, 23, has achondroplasia dwarfism — a bone growth disorder caused by a genetic mutation in the arms and legs. She says heads turn when she goes out with 5-foot-8 boyfriend Guy ...

Achondroplasia is a rare genetic disorder of bone growth that causes short-limbed dwarfism. It occurs due to mutations in a single gene called the FGFR3.