25th September’2021
Changes in nail color may result from a color change in the nail plate or in the nail bed.
| Etiology | Pattern of color change |
|---|---|
| BROWN NAILS | |
| Antimalarial drugs | Diffuse blue, brown |
| Cancer chemotherapeutic agents | Transverse black bands |
| Hyperbilirubinemia | Diffuse brown |
| Junctional nevi | Longitudinal brown bands |
| Malnutrition | Diffuse brown or black bands |
| Melanocyte stimulating hormone oversecretion Addison’s disease Cushing’ s disease (after adrenalectomy) Pituitary tumor | Longitudinal brown bands |
| Melanoma | Longitudinal bands may increase with width (Hutchinson’s sign) |
| Normal finding in more than 90 % of black peopie | Longitudinal brown bands |
| Photographic developer | Diffuse brown |
| GREEN NAILS | |
| Pseudomonas | Green streaks and patches |
| YELLOW NAILS | |
| Yellow- nails syndrome | Diffuse yellow |
| Onycholysis | Distal nail separation |
| BLUE NAILS (IN BLACK PEOPLE) | |
| Zidovudine treatment for AIDS | Diffuse blue |
| Antimalarial drugs | Diffuse blue |
| Minocycline | Diffuse blue |
| Wilson disease | Diffuse blue |
| Hemorrhage | Irregular |
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Reference : Clinical dermatology by Thomas P. Habif.
MetCures 