“…Leukonychia causes include dermatological causes (alopecia areata, erythema multiforme, exfoliative dermatitis, lichen planopilaris, psoriasis, systemic lupus erythematosus), drugs (cyclosporine, cytotoxic agents, penicillamine, quinacrine, retinoids, steroids, sulphonamides), infections (leprosy, malaria), nutrition (malnutrition, pellagra, protein deficiency, zinc deficiency), poisoning (arsenic, fluoride), systemic diseases (cardiac failure, hypocalcemia, graft rejection, liver cirrhosis, liver failure, pneumonia, Raynaud’s disease, and trauma [4-5]. Yellow chromonychia can be caused by onychomycosis or yellow nail syndrome (a syndrome involving yellow dystrophic nails), lymphedema, and pleural effusions, or can be induced by antimalarial, gold-containing, hydroxyurea, penicillamine, and, tetracycline drugs [4-5].…”