Three conditions, Hurler, Hurler-Scheie, and Scheie syndromes, are caused by a deficiency of this enzyme.
About one child in 100,000 is born with Hurler syndrome.
Symptoms of Hurler syndrome are often evident within the first year or two after birth.
These individuals may develop some of the same physical features as those with Hurler syndrome, but usually they are not as severe.
It is also highly variable, but symptoms are generally similar to those seen in individuals with Hurler syndrome.