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Folliculitis (cont.)

What Are Folliculitis Risk Factors?

Folliculitis does not occur on the palms or soles or on mucous membranes, since they have no hair follicles. Exposure to potential infectious agents and certain types of occupational exposures can predispose to folliculitis. Football players and wrestlers are predisposed to develop staphylococcal folliculitis due to the presence of superficial skin abrasions related to their athletic participation. There is a well-known condition called "hot tub folliculitis" which can affect those who frequent poorly maintained hot tubs. These people develop a folliculitis produced by Pseudomonas bacteria. Poor shaving techniques can produce folliculitis on the legs of women and the necks of men. Pregnant women are prone to develop an itchy folliculitis that resolves spontaneously after delivery. Patients with HIV disease may develop a peculiar folliculitis produced by certain white blood cells (eosinophils) infiltrating into the follicles as well as a widespread folliculitis produced by molluscum contagiosum virus. A group of new anticancer drugs, epidermal growth factor receptor inhibitors, can produce a facial folliculitis.

What Are Symptoms and Signs of Folliculitis?

The characteristic finding in folliculitis is redness, swelling, and often pustule formation limited to hair follicles. It may be possible to identify a hair surrounded by red, swollen tissue. Occasionally this may be associated with itching and mild pain or tenderness.

Medically Reviewed by a Doctor on 10/6/2016

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