Subungual hemorrhage

Melanonychia: Clues for Diagnosis and the Importance of Histology
Melanonychia Originally published May 26, 2021; updated February 23, 2026 by the Next Steps in Derm Editorial Team with refreshed links and expanded guidance on treating nail disorders. Just as pigmented lesions on the skin can vary widely from freckles to lentigines to nevi to melanoma, similar pigmented lesions can be seen in nails. Melanonychia, brown …
Melanonychia