Severe congenital<unk>  affecting all twenty nailbeds has been recorded in two families who exhibit the dominant allele for a certain gene. Congenital<unk>  of the fifth toe (the baby, little, pinky or small toe) is fairly common, but asymptomatic and seldom brought to the attention of medical professionals. Rather, it is brought to the attention of manicurists who routinely file the clawed toenail flat.
Onychogryphosis
Onychophosis
Hypertrichosis cubiti
Auricular hypertrichosis
Sparganosis
Platonychia
Xanthelasma
Koilonychia