<\/span><\/h2>\nAcne is a common skin condition commonly referred to as acne vulgaris that causes pimples and zits and other changes on the face and upper body.\u00a0 It is the most common skin disease in the United States of America, and it affects 80% of the population at some point in their lives.<\/span><\/p>\nCommon acne is a collection of comedones, papules, pustules, nodes and \/ or cysts as a result of obstruction and inflammation of the pilosebaceous complex (hair follicles and adjacent sebaceous gland). Acne forms on the face and upper body. Most often seen in adolescents. Diagnosis is made by physical examination. Treatment depends on the severity and may include a number of medicines for external and systemic use, aimed at reducing the sebum production of sebaceous glands, the formation of comedones, inflammation and the number of bacteria, as well as normalizing keratinization.<\/span><\/p>\nAcne is caused by the interaction of hormones, sebum, and bacteria, resulting in inflammation of the hair follicles (the pores of the skin from which hair grow). Acne is characterized by many types of skin abnormalities (lesions). They vary in size and severity; some of them grow deeper into the skin than others:<\/span><\/p>\n\n- blackheads (open comedones);<\/span><\/li>\n
- whiteheads (closed comedones);<\/span><\/li>\n
- acne (inflamed closed comedones);<\/span><\/li>\n
- hard bumps that rise above the level of the skin (papules);<\/span><\/li>\n
- Superficial bumps containing pus (pustules)<\/span><\/li>\n
- dense bumps containing pus in the depths of the skin (nodules);<\/span><\/li>\n
- large pockets containing pus (cyst with debris);<\/span><\/li>\n
- sometimes even larger, deep pockets containing pus (abscesses).<\/span><\/li>\n<\/ul>\n
Complex debris containing cysts and abscesses are cavities filled with pus, but the abscesses are somewhat larger and deeper.<\/span><\/p>\nThe sebaceous glands, which secrete an oily substance (sebum), are found in the dermis (the middle layer of the skin). These glands are associated with hair follicles. Sebum, along with dead skin cells, is excreted from the ducts of the sebaceous glands and hair follicles to the surface of the skin through the pores.<\/span><\/p>\nAcne occurs when a buildup of hardened sebum, dead skin cells, and bacteria clogs hair follicles, preventing sebum from escaping through the pores.<\/span><\/p>\nIf the blockage is incomplete, blackheads (open comedones) form .<\/span><\/p>\nIf the blockage is complete, whiteheads (closed comedones) form .<\/span><\/p>\nA pimple\u00a0 is an inflamed whitehead . Blocked hair follicles filled with sebum promote overgrowth of the bacteria Cutibacterium acnes (formerly Propionibacterium acnes ), which normally live in hair follicles. These bacteria break down the sebum, resulting in substances that irritate the skin. The resulting inflammation results in bumps on the skin known as acne (acne). Deeper inflammation causes cysts and sometimes abscesses.<\/span><\/p>\nSummary of introduction:<\/span><\/p>\n\n- Acne is caused by a buildup of dead skin cells, bacteria, and hardened sebum that clogs the hair follicles.<\/span><\/li>\n
- Bumps such as comedones, whiteheads, acne, cysts, and sometimes abscesses form on the skin (usually on the face, chest, shoulders, or back).<\/span><\/li>\n
- Doctors examine the skin to diagnose acne.<\/span><\/li>\n
- Common treatments include topical application of antibiotics and other drugs to the skin for mild acne, oral antibiotics for moderate acne, and oral isotretinoin for severe acne.<\/span><\/li>\n<\/ul>\n