Many women suffer from lifelong bad breath, but as the sweat glands atrophy in old age, the symptoms of bad breath will gradually subside or even disappear completely. Fox odor, or armpit odor, is due to a special secretion produced by the sweat glands in the top of the armpit, which is metabolized by bacterial decomposition to form fatty acids with a special odor. Armpit odor will not disappear on its own, into old age, due to the gradual shrinkage of sweat glands, its symptoms will gradually reduce; some patients after 60 years of age, the odor will be significantly reduced or even completely subside. For young people with armpit odor, if you want to improve the will can go to the regular hospital, the current common measures to improve armpit odor are mainly gold micro-needle, botulinum toxin, surgery and so on. Less spicy and stimulating food, less alcohol; timely bathing after exercise, etc. can reduce the odor.