BACK TOTOP Browse A-ZSearchBrowse A-ZABCDEFGHIJKLMNOPQRSTUVWXYZ0-9 E-mail FormEmail ResultsName:Email address:Recipients Name:Recipients address:Message: Print-FriendlyBookmarksbookmarks-menuComedonesSkin bumps - acne-like; Acne-like skin bumps; Whiteheads; BlackheadsComedones are small, flesh-colored, white, or dark bumps that give skin a rough texture. The bumps are one type of acne. They are found at the opening of skin pores. A solid core can often be seen in the middle of the small bump. Comedones are called open or closed based on whether the surface is disrupted (open) or intact (closed). Open comedones are blackheads and closed comedones are whiteheads.AcneAcne is a skin condition that causes pimples or "zits. " Whiteheads, blackheads, and red, inflamed patches of skin (such as cysts) may develop....ImageRead Article Now Book Mark Article BlackheadsBlackheads are tiny, dark spots on the skin. They are caused by a small plug in the opening of a follicle (pore). Blackheads are also called open c...ImageRead Article Now Book Mark Article WhiteheadsWhiteheads are small, white, raised bumps on the skin. They form when oil and skin collect in the pores. Whiteheads are also known as closed comedo...ImageRead Article Now Book Mark Article Open ReferencesReferencesDinulos JGH. Acne, rosacea, and related disorders. In: Dinulos JGH, ed. Habif's Clinical Dermatology: A Color Guide in Diagnosis and Therapy. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 7.James WD, Elston DM, Treat JR, Rosenbach MA, Neuhaus IM. Acne. In: James WD, Elston DM, Treat JR, Rosenbach, MA, Neuhaus IM, eds. Andrews' Diseases of the Skin: Clinical Dermatology. 13th ed. Philadelphia, PA: Elsevier; 2020:chap 13.AllVideoImagesTogAcne - close-up of pustular lesions - illustration Acne lesions frequently contain pus. This close-up photograph shows small acne pustules with surrounding inflammation (erythema).Acne - close-up of pustular lesionsillustrationBlackheads (comedones) - illustration Blackheads, or open comedones, are common in acne. Clogged hair follicles reflect light irregularly to produce this black hue.Blackheads (comedones)illustrationBlackheads (comedones) close-up - illustration Blackheads, or open comedones, are common in acne. Clogged hair follicles reflect light irregularly to produce this black hue.Blackheads (comedones) close-upillustrationAcne - cystic on the chest - illustration Cystic acne may occur across the upper chest as well as on the back.Acne - cystic on the chestillustrationAcne - cystic on the face - illustration The face is the most common location of acne. Here, there are 4 to 6 millimeter red (erythematous) pustules, some with bridging scars and fistulous tract formation (connecting passages). Severe acne may have a profound psychological impact and may cause scarring. Effective treatments are available for this type of acne.Acne - cystic on the faceillustrationAcne - vulgaris on the back - illustration Acne frequently occurs on the back. Here, there are 2 to 6 millimeter wide erythematous (red) pustules with large open and closed comedones. Permanent scarring may follow a severe case of acne. Men are more often affected on their shoulders and back than are women.Acne - vulgaris on the backillustrationAcne - close-up of cysts on the back - illustration Cystic acne, or nodulocystic acne, is the most severe form of acne. Both pustules and hard red bumps are present in the skin. This form of acne is more difficult to treat and often requires taking an oral vitamin A derivative.Acne - close-up of cysts on the backillustrationAcne - cystic on the back - illustration Cystic acne, or nodulocystic acne, is the most severe form of acne. Both pustules and red bumps are present in the skin and scarring can be seen. The back is a common site for acne.Acne - cystic on the backillustrationAcne - close-up of pustular lesions - illustration Acne lesions frequently contain pus. This close-up photograph shows small acne pustules with surrounding inflammation (erythema).Acne - close-up of pustular lesionsillustrationBlackheads (comedones) - illustration Blackheads, or open comedones, are common in acne. Clogged hair follicles reflect light irregularly to produce this black hue.Blackheads (comedones)illustrationBlackheads (comedones) close-up - illustration Blackheads, or open comedones, are common in acne. Clogged hair follicles reflect light irregularly to produce this black hue.Blackheads (comedones) close-upillustrationAcne - cystic on the chest - illustration Cystic acne may occur across the upper chest as well as on the back.Acne - cystic on the chestillustrationAcne - cystic on the face - illustration The face is the most common location of acne. Here, there are 4 to 6 millimeter red (erythematous) pustules, some with bridging scars and fistulous tract formation (connecting passages). Severe acne may have a profound psychological impact and may cause scarring. Effective treatments are available for this type of acne.Acne - cystic on the faceillustrationAcne - vulgaris on the back - illustration Acne frequently occurs on the back. Here, there are 2 to 6 millimeter wide erythematous (red) pustules with large open and closed comedones. Permanent scarring may follow a severe case of acne. Men are more often affected on their shoulders and back than are women.Acne - vulgaris on the backillustrationAcne - close-up of cysts on the back - illustration Cystic acne, or nodulocystic acne, is the most severe form of acne. Both pustules and hard red bumps are present in the skin. This form of acne is more difficult to treat and often requires taking an oral vitamin A derivative.Acne - close-up of cysts on the backillustrationAcne - cystic on the back - illustration Cystic acne, or nodulocystic acne, is the most severe form of acne. Both pustules and red bumps are present in the skin and scarring can be seen. The back is a common site for acne.Acne - cystic on the backillustrationRelated Information Acne(Condition) Review Date: 10/20/2022 Reviewed By: Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. 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ComedonesSkin bumps - acne-like; Acne-like skin bumps; Whiteheads; BlackheadsComedones are small, flesh-colored, white, or dark bumps that give skin a rough texture. The bumps are one type of acne. They are found at the opening of skin pores. A solid core can often be seen in the middle of the small bump. Comedones are called open or closed based on whether the surface is disrupted (open) or intact (closed). Open comedones are blackheads and closed comedones are whiteheads.AcneAcne is a skin condition that causes pimples or "zits. " Whiteheads, blackheads, and red, inflamed patches of skin (such as cysts) may develop....ImageRead Article Now Book Mark Article BlackheadsBlackheads are tiny, dark spots on the skin. They are caused by a small plug in the opening of a follicle (pore). Blackheads are also called open c...ImageRead Article Now Book Mark Article WhiteheadsWhiteheads are small, white, raised bumps on the skin. They form when oil and skin collect in the pores. Whiteheads are also known as closed comedo...ImageRead Article Now Book Mark Article Open ReferencesReferencesDinulos JGH. Acne, rosacea, and related disorders. In: Dinulos JGH, ed. Habif's Clinical Dermatology: A Color Guide in Diagnosis and Therapy. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 7.James WD, Elston DM, Treat JR, Rosenbach MA, Neuhaus IM. Acne. In: James WD, Elston DM, Treat JR, Rosenbach, MA, Neuhaus IM, eds. Andrews' Diseases of the Skin: Clinical Dermatology. 13th ed. Philadelphia, PA: Elsevier; 2020:chap 13.