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Questions and Answers - Page 2
People with acne frequently have a variety of lesions, some of which are shown in the diagrams below. The basic acne lesion, called the comedo (KOM-e-do), is simply an enlarged and plugged hair follicle. If the plugged follicle, or comedo, stays beneath the skin, it is called a closed comedo and produces
a white bump called a whitehead. A comedo that reaches the surface of the skin and opens up is called a blackhead because it looks black on the skin’s surface. This black discoloration is not due to dirt. Both whiteheads and blackheads may stay in the skin for a long time.
Other troublesome acne lesions can develop, including the following:
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Papules - inflamed lesions that usually appear as small, pink bumps on the skin and can be tender to the touch. |
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Pustules (pimples) - papules topped by pus-filled lesions that may be red at the base. |
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Nodules - large, painful, solid lesions that are lodged deep within the skin. |
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Cysts - deep, painful, pus-filled lesions that can cause scarring. |
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