The most common cause of those funny ridges down the middle of thumbnails is surprising – and it’s reversible. The ridging, also called habit-tic deformity, is caused by flicking the nail and adjacent cuticle. This practice is a tension-releasing habit that many people have. When done often, the cuticle callouses and thickens, altering nail growth […]
The post What Causes Thumbnail Ridging? appeared first on Dr. Bailey's Skin Health & Wellness Blog.
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