What is a common sign of Ectodermal Dysplasia?

Ectodermal Dysplasia is a condition characterized by defects in the ectodermal structures, which can include hair, teeth, nails, and sweat glands. One of the most recognizable signs of this condition is the congenitally missing teeth, leading to a condition known as hypodontia or anodontia. Many individuals with Ectodermal Dysplasia may have fewer teeth than normal or may be missing certain types of teeth, especially the incisors and canines. This is due to the developmental abnormalities that occur during the formation of these structures in individuals with this condition.

The presence of thick hair is not a typical feature of Ectodermal Dysplasia; in fact, individuals often have sparse or fine hair. Frequent headaches and changes in tooth coloring are also not recognized as common symptoms associated with Ectodermal Dysplasia. Therefore, the missing teeth specifically highlight one of the core manifestations of this condition, making it the most accurate choice among the presented options.