Most dwarfism-related conditions are genetic disorders, but the causes of some disorders are unknown. Most occurrences of dwarfism result from a random genetic mutation in either the father's sperm or the mother's egg rather than from either parent's complete genetic makeup.

Where does dwarfism gene come from?

The most common form of dwarfism is due to a DNA difference in the FGFR3 gene on chromosome 4. There are many different causes of dwarfism and they are found on different chromosomes.

What type of people get dwarfism?

Dwarfism most often does happen in families where both parents are of average height. More than 300 different conditions can cause dwarfism. Achondroplasia is the most common type of dwarfism. Achondroplasia is a genetic condition that affects about 1 in 15,000 to 1 in 40,000 people.