Alopecia Male Pattern Baldness

Alopecia occurs when the hair shaft is lost and the hair follicle cannot regenerate. This results in permanent hair loss. Alopecia is associated with a familial history and the aging process. Some patients experience alopecia earlier than others. Some medications can cause temporary alopecia. These include anticancer (antineoplastic) agents, gold salts, sulfonamides, anticonvulsants, aminoglyco-sides, and nonsteroideal antiflammatory drugs (NSAIDs) such as indomethacin. Table 20-2. Topical...