Anhidrotic ectodermal dysplasia is a rare genetic condition that affects a person’s hair, skin, teeth, and sweat glands. People with ectodermal dysplasia are usually born with wiry, brittle, and pale hair with milky white nails. Their skin is often dry, wrinkled, and darker in color around their joints. People with ectodermal dysplasia usually have missing teeth, or teeth that are small and pointed. Their sweat glands may not work like other peoples causing them to easily overheat. This is because they can not sweat as much as other people, meaning that they can not cool off and their body temperature can get too high. Talk with your doctor to find the best treatment for you if you have been diagnosed with anhidrotic ectodermal dysplasia.