Pseudofolliculitis of the Beard
- Author: Thomas G Greidanus, MD; Chief Editor: Dirk M Elston, MD more...
Pseudofolliculitis barbae (PFB) or shaving bumps is a foreign body inflammatory reaction involving papules and pustules. It primarily affects curly haired males who shave. Pseudofolliculitis barbae can also affect some white men and hirsute black women. Pseudofolliculitis pubis is a similar condition occurring after pubic hair is shaved.
Two mechanisms are involved in the pathogenesis of pseudofolliculitis barbae: (1) extrafollicular penetration occurs when a curly hair reenters the skin, and (2) transfollicular penetration occurs when the sharp tip of a growing hair pierces the follicle wall.
Black men who shave are predisposed to this condition because of their tightly curved hair. The sharp pointed hair from a recent shave briefly surfaces from the skin and reenters a short distance away. Several methods of close shaving result in a hair cut below the surface. These methods include pulling the skin taut while shaving, shaving against the grain, plucking hairs with tweezers, removing hairs with electrolysis, and using double- or triple-bladed razors. The close shave results in a sharp tip below the skin surface, which is then more likely to pierce the follicular wall, causing pseudofolliculitis barbae with transfollicular penetration.[2, 3]
About 10-80% of adult black men have pseudofolliculitis barbae, particularly those who shave closely on a regular basis. It is a significant problem in black men in the military where regulations require a clean-shaven face.
Pseudofolliculitis barbae is found mostly in black men.
Men with facial hair comprise most patients, although hirsute women can also develop pseudofolliculitis barbae. Both sexes can develop pseudofolliculitis pubis. Common sites in black women and those of ethnic backgrounds characterized by darker skin include the pubic and axillary areas because these are more frequent sites of hair removal in this population.
Pseudofolliculitis barbae affects men with facial hair (postpuberty).
Crutchfield CE 3rd. The causes and treatment of pseudofolliculitis barbae. Cutis. 1998 Jun. 61(6):351-6. [Medline].
Quarles FN, Brody H, Johnson BA, et al. Pseudofolliculitis barbae. Dermatol Ther. 2007 May-Jun. 20(3):133-6. [Medline].
Kindred C, Oresajo CO, Yatskayer M, Halder RM. Comparative evaluation of men's depilatory composition versus razor in black men. Cutis. 2011 Aug. 88(2):98-103. [Medline].
Garcia-Zuazaga J. Pseudofolliculitis barbae: review and update on new treatment modalities. Mil Med. 2003 Jul. 168(7):561-4. [Medline].
Chuh A, Zawar V. Epiluminescence dermatoscopy enhanced patient compliance and achieved treatment success in pseudofolliculitis barbae. Australas J Dermatol. 2006 Feb. 47(1):60-2. [Medline].
Olsen EA. Methods of hair removal. J Am Acad Dermatol. 1999 Feb. 40(2 Pt 1):143-55; quiz 156-7. [Medline].
Childs ND. Tretinoin, hydrocortisone cream controls PFB. Skin and Allergy News. 1999. 30(5):20.
Kligman AM, Mills OH Jr. Pseudofolliculitis of the beard and topically applied tretinoin. Arch Dermatol. 1973 Apr. 107(4):551-2. [Medline].
Taylor S. Open-Label Case Study on Triple-Combination Cream in Patients with Pseudofolliculitis Barbae. J Am Acad Dermatol. 2005. 52:P169.
Callender V, Young CM. Combination Laser and Eflornithine HCL 13.9% Cream: A First-line Therapy for Fitzpatrick Type IV-VI Patients With Excessive Facial Hair. J Am Acad Dermatol. Mar 2005. 52(3) suppl:P209.
Brown LA Jr. Pathogenesis and treatment of pseudofolliculitis barbae. Cutis. 1983 Oct. 32(4):373-5. [Medline].
Leyden JJ. Topical treatment for the inflamed lesion in acne, rosacea, and pseudofolliculitis barbae. Cutis. 2004 Jun. 73(6 Suppl):4-5. [Medline].
Alexander AM, Delph WI. Pseudofolliculitis barbae in the military. A medical, administrative and social problem. J Natl Med Assoc. 1974 Nov. 66(6):459-64, 479. [Medline].
Brauner GJ, Flandermeyer KL. Pseudofolliculitis barbae. Medical consequences of interracial friction in the US Army. Cutis. 1979 Jan. 23(1):61-6. [Medline].
Coquilla BH, Lewis CW. Management of pseudofolliculitis barbae. Mil Med. 1995 May. 160(5):263-9. [Medline].
Bridgeman-Shah S. The medical and surgical therapy of pseudofolliculitis barbae. Dermatol Ther. 2004. 17(2):158-63. [Medline].
Kauvar AN. Treatment of pseudofolliculitis with a pulsed infrared laser. Arch Dermatol. 2000 Nov. 136(11):1343-6. [Medline].
Perry PK, Cook-Bolden FE, Rahman Z, Jones E, Taylor SC. Defining pseudofolliculitis barbae in 2001: a review of the literature and current trends. J Am Acad Dermatol. 2002 Feb. 46(2 Suppl Understanding):S113-9. [Medline].
Robins P, Battle EF Jr, Alexis AF, Cook-Bolden F, Alqubaisy Y, McLeod MP, et al. Unique laser techniques in patients with skin of color. J Drugs Dermatol. 2011 Dec 1. 10(12):4-26. [Medline].
Schulze R, Meehan KJ, Lopez A, et al. Low-fluence 1,064-nm laser hair reduction for pseudofolliculitis barbae in skin types IV, V, and VI. Dermatol Surg. 2009 Jan. 35(1):98-107. [Medline].
Ross EV, Cooke LM, Timko AL, Overstreet KA, Graham BS, Barnette DJ. Treatment of pseudofolliculitis barbae in skin types IV, V, and VI with a long-pulsed neodymium:yttrium aluminum garnet laser. J Am Acad Dermatol. 2002 Aug. 47(2):263-70. [Medline].
Emer JJ. Best practices and evidenced-based use of the 800 nm diode laser for the treatment of pseudofolliculitis barbae in skin of color. J Drugs Dermatol. 2011 Dec. 10(12 Suppl):s20-2. [Medline].
Alexander AM. Evaluation of a foil-guarded shaver in the management of pseudofolliculitis barbae. Cutis. 1981 May. 27(5):534-7, 540-2. [Medline].