7/1/23, 12:14 AM Koilonychia Pathway Feedback Search Clinical Topics Home Findings Koilonychia Koilonychia More common causes Iron deficiency Psoriasis Hereditary hemochromatosis Syphilis infection Lichen planus Less common causes Onychomycosis Darier's disease Steatocystoma multiplex Raynaud's syndrome Uncommon causes Acute intermittent porphyria Isolated congenital nail dysplasia https://web.pathway.md/findings/recAqAKPq7ZciuGeN 1/1