do brown fingernails indicate glutathione deficiency Reversible Melanonychia Revealing Nutritional Vitamin-B12 Hair, nail, and pigment changes
Hair, nail, and pigment changes in major systemic disease ScienceDirect Part 3: Signs of Vitamin Deficiency! White Spots on Nails! Melanonychia: Etiology, Diagnosis, and Treatment PMC Nail changes can reflect underlying hormonal and metabolic disorders. Features like onycholysis suggest hyperthyroidism, while brittle or slow growing nails point to hypothyroidism. Findings such as koilonychia and thickened nails may indicate systemic
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