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Acne

2013-11-13 来源: 类别: 更多范文

Acne Acne - Skin's Miniture Volcanoes This purpose of this paper is to explain the cause of acne, give some examples, and how to get help prevent it. This paper will also dispel some of the myths of acne and how it is caused. Acne is a condition of the skin that ranges in appearance from raised bumps to pustules (large cysts and pimples). Acne is so common that more than 80 percent of the population will have some form of it at some time in some time of their lives. Although there are several theories about what causes acne, authorities generally believe that acne is a by-product of hormonal changes in the body during puberty- that period of life when a child develops the secondary sex characteristics (such as facial and body hair, deepened voice, and increased muscle mass in boys and breast development and breast development and menstruation in girls). At this time, production of hormones (particularly the male hormone testosterone) increases and stimulates sebaceous glands in the skin to produce sebum (an oily secretion). Most excess oil produced by these glands leaves the skin through the hair follicles (the tube like structures from which the hair develops). Sometimes, oil acne, skin, however, hair, drug, surface, sebaceous, particularly, help, glands, comedones, cause, very, time, supervision, should, role, form, follicles, development, certain, cases, called, bacteria, antibiotic, visit, under, tretinoin, treatments, support, stress, since, severe, several, sebum
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