Congenital hypertrichosis terminalis is a slight variation on the genetic condition of hypertrichosis lanuginosa, the two are definately not the same. In the latter the main symptom is all-over body hair growth that is unpigmented, whereas in the terminalis variant the hair is pigmented.

This condition is usually assiociated with teeth defects (gingival hyperplasia). Julia Pastrana was thought to have suffered from this condition however careful examination of the preserved remains shows it to be terminalis rather than langinosa.