Still another may have sparse hair and a hearing loss. Each combination of features represents another type of ED Syndrome and has a specific name. The severity of the condition varies from individual to individual and family to family. Some of these are autosomal dominant. For hypohidrotic ED, inheritance is usually X linked but can be autosomal dominant or autosomal recessive.
Genetic counselling is available for families.
This is available for some families with X-linked hypohidrotic ectodermal dysplasia using molecular genetic methods including mutational testing or linkage analysis. This is not possible for all families. A gene has been identified on chromosome 2 which is involved in some cases of autosomal hypohidrotic ED, but testing for this is not yet available as a regular diagnostic service. The society is a Self Help Group. We are a main source of information about rare disorders and are able to assist affected adults as well as children.