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    Keratosis Pilaris Directory

    Keratosis pilaris appears as small bumps, usually on the upper arms and thighs. The harmless condition is caused by a buildup of the protein keratin that can plug hair follicles. It may worsen during pregnancy, after childbirth, or during the dry winter months. Follow the links below to find WebMD's comprehensive coverage about keratosis pilaris, what it looks like, how it is treated, and much more.

    Medical Reference

    • Cysts, Lumps, Bumps, and Your Skin

      There are a number of skin conditions that cause lumps and bumps to appear. This article covers some of the most common ones.

    • Common Skin Rashes

      The the basics on some common types of skin rashes, including eczema, granuloma annulare, lichen planus, and pityriasis rosea.

    • Skin Cysts and Tumors

      WebMD explains causes, symptoms, types, and treatment of skin cysts and tumors.

    • Understanding Pregnancy Discomforts -- Treatment

      Get tips from WebMD on treating common pregnancy woes, such as constipation, fatigue, and heartburn.

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    Features

    • Why the Skin on Your Arms Is Bumpy

      Got lots of little bumps on your arms? As it turns out, they're caused by a very harmless -- and very common -- skin condition. Here's what you can do about them.

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    What Is Psoriasis?

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