Causes of hair loss include scalp disease, systemic disease, toxic agents, radiation exposure, trauma or pressure, psychiatric diseases, and other factors.1'2 Medication-induced hair loss usually presents as a diffuse, nonscarring, and reversible loss of hair that becomes clinically detectable a few months after medication treatment is started and is usually transient and reversible upon discontinuation of the medication.1 The risk of hair loss might be higher in women,3 and it is suggested that alteration of hormones may contribute to the gender difference.2 However, the underlying mechanism of drug-induced alopecia remains unclear.
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