Treatment is by discontinuing nail polish and applying moisturiser. An acceptable alternative is gel nails. Some favourable response has been reported with biotin if the person is deficient in vitamin B7. It is not routinely given.
Onychoschizia
Onychauxis
Koilonychia
Cryptotia
Onychophosis
Auricular hypertrichosis
Platonychia
Hypertrichosis cubiti