The sweat secreted by the sweat glands in the armpits is decomposed by bacteria and emits an unpleasant smell, which is called fox odor. Acquired fox odor may be caused by excessive sweat in the armpits due to obesity, excessive greasy diet, and bacterial decomposition, resulting in fox odor, which may gradually reduce or even self-heal. With age, the body gradually ages and the sweat glands gradually atrophy, and with diet adjustment and proper weight loss, the condition may gradually reduce or even disappear. Patients who exercise too much, eat a lot of high-fat food or are obese cause excessive sweating, and if there is an underarm bacterial infection, it can lead to fox odor symptoms. Patients usually pay attention to adjusting their lifestyle, wash in time after exercise, avoid eating too much greasy food, and lose weight appropriately, so that the secretion of underarm sweat can be reduced and the odor can be gradually reduced. As age increases, sweat glands atrophy and sweat will also decrease, thus making it possible for fox odor to heal itself. If the smell of fox odor is light, you can not need special treatment, pay attention to local ventilation, cleanliness, diligent bathing, laundry, wearing loose, sweat-absorbing clothes, and appropriate spray antibacterial spray or antiperspirant, which has a good effect on fox odor. For moderate to severe armpit odor, which usually cannot be cured by itself and cannot be significantly improved by ordinary methods, it can be treated with laser, surgery or botulinum toxin injection under the guidance of doctors.