<unk>  presents with thickened nails without deformity, and this simple thickening may be the result of trauma, acromegaly, Darier's disease, psoriasis, or pityriasis rubra pilaris, or, in some cases, hereditary.:783
Onychauxis
Koilonychia
Onychophosis
Pyromania
Sterculia
Platonychia
Milia
Xanthelasma