Noticed a dark streak on your nail? It could be melanonychia a condition where pigmentation appears in the nail plate, often as a brown or black line. While it's commonly Longitudinal Melanonychia: What You Need to Know TikTok What Is Melanonychia? What Causes It and How It's Treated Melanonychia: moles and melanoma on the nail Dr. Podlipnik
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melanotic macule nail Evaluation and diagnosis of longitudinal melanonychia: A clinical review by a nail expert group