Armpit odor is due to an odor in the armpits when sweating, and can be caused by genetic, dietary, neurological, and mental reasons. Botulinum toxin treatment for armpit odor has the advantages of reducing bad odor and simple operation, but also has the disadvantages of weakening the effect of frequent injection of Botulinum toxin, and the large dose of Botulinum toxin causes sensory disorders of the underarm skin. 1. Advantages of botulinum toxin treatment for armpit odor: Botulinum toxin’s effect is to block the conduction of nerves and glands, inhibit the secretion of axillary glands, so that the armpits will be free of odor for a long time and keep fresh. In addition, botulinum toxin treatment for armpit odor is easy to operate, with little damage to the skin, and the patient can work normally after treatment without hospitalization, and the damage to the body is very small. 2. Disadvantages of Botulinum toxin treatment for armpit odor: the effect of Botulinum toxin treatment for armpit odor can be maintained for 5-7 months, and multiple treatments are needed to maintain the effect; if too much Botulinum toxin is injected at one time or the frequency of Botulinum toxin injection is too frequent, the patient will suffer from discomfort such as numbness of the armpits. Patients who are willing to have armpit odor treatment are recommended to go to regular hospitals for treatment and may achieve satisfactory results according to the guidance of professional physicians.