The average height of an adult male with achondroplasia is 4 feet 4 inches. Meanwhile, the average adult female height is 4 feet 1 inch.
80% of people with achondroplasia have parents without the gene(new mutation), the other 20% is caused by heredity.
Achondroplasia is actually pretty rare. Only around 1 in every 15,000-40,000 newborns have the condition.
People with achondroplasia usually have larger heads and foreheads.
Men and women have an equal chance of receiving the disease.
Although both parents may have achondroplasia, the children still have a slight chance of being normal sized. (only if both parents have a heterozygous genotype)