X-linked hypohidrotic ectodermal dysplasia (MONDO_0010585) is an X-linked form of ectodermal dysplasia which results from mutations of the gene encoding ectodysplasin. Also known as: Christ-Siemens-Touraine syndrome, X-linked anhidrotic ectodermal dysplasia, XHED, ectodermal dysplasia 1, hypohidrotic, X-linked, X-linked recessive, hypohidrotic ectodermal dysplasia, X-linked.