do brown fingernails indicate glutathione deficiency 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 systemic Prominent brown discoloration on the
Prominent brown discoloration on the distal medial aspects of the nails Download Scientific Diagram Reversible Melanonychia Revealing Nutritional Vitamin B12 Deficiency PMC Total melanonychia of 20 nails as a rare manifestation of vitamin B12 deficiency JAAD Case Reports Melanonychia: What It Is, Causes & Treatment
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