(This is an excerpt from A Family Guide to the Ectodermal Dysplasias Syndromes, published by the NFED.) Growth abnormalities are common in children with ectodermal dysplasias. Weight deficits are present at an early age and persist throughout adolescence. Height deficits are seen primarily in children with ectodermal dysplasias other than hypohidrotic ectodermal dysplasia (HED). Parents…