Local Injections of Botulinum Toxin A in Treatment of Androgenetic Alopecia / 中山大学学报(医学科学版)

ABSTRACT

[Objective] To determine the efficacy and safety of local injections of botulinum toxin A in the treatment of androgenetic alopecia.[Methods] 72 male patients were randomly into botulinum toxin An group (n=35) and the control group (n=37),the treatment time was 6 months.All the patients were photographed and evaluated,before the treatment,and 3 months and 6 months.[Results] After the treatment of half a year,a good result was observed,the hair density in the treatment group was higher after 3months and 6 months than before the treatment (P＜0.05),but there was no difference between the after 3months and 6 months (P＞0.05),the hair density in the control group was higher after 6 months than before the treatment and after 3 months (P＜0.05),but there was no difference between the after 3 months and before the treatment (P＞0.05);but there was no difference between the after 3 months and 6 months (P＞0.05);After 6 months,the effective ratio and in two group were 91.4％ and 86.5％ in treated group,it showed no significant difference (P＞0.05) [Conclusion] the treatment of local injections of botulinum toxin A has a marked effect on androgenetic alopecia,it is safe and effective.