"The body odor really may permanently cure?" This question, is each body odor friend nicest. Although some factories, clinic in order to seek profit shouted "the body odor may permanently cure". But this kind of slogan -like propaganda, certainly cannot let the patient belief and satisfaction. Is really just about to answers this question, must the science analysis, the scientific explanation. Just like has a problem, we first should find the root which this question produces, starts from the root, can get it over and done the solution, does not keep the future trouble, the body odor question also is same. That body odor produces what is the true root? Formerly to the body odor so-called legitimate understanding was: The body odor is as a result of the young people time internal secretion influence, the big sweat gland secretes matter and so on fatty acid, protein, one kind of odor which is produced by the armpit bacterium yeast solution. Method of treatment produces which based on this kind of principle, radically is unable to achieve the thorough elimination body odor. This had proven from the reverse side the before so-called legitimate understanding was wrong. Then discovers the body odor the true root, has become the key which whether the body odor permanently cures.