What can trigger keratosis pilaris? What can you do if you already have it? And can you prevent the condition getting worse? Keratosis pilaris is a common-yet-harmless skin condition which appears as small, hard bumps on your skin, that may make your skin feel like sandpaper. These bumps are often light in colour and can usually be seen on the upper arms, thighs or buttocks. They can also cause redness
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