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The importance of human hair in view of social communication and sexual attraction is enormous. Thus, diseases that lead to hair loss (alopecia), structural hair shaft defects or excessive hair growth on the body are often accompanied by diminished sense of personal well-being and self-esteem, leading to depressive moods and withdrawal from social interims.
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In this chapter, we discuss the biologic basis and clinical presentation of hair growth disorders, give definitions (eTable 88-0.1), explain key management principles, and provide practical advice for diagnosis, therapy and patient management.
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