Armpit odor, also known as fox odor and odoriferous sweat, is the sweat excreted by the sweat glands of the patient’s armpits, vulva and corners of the mouth, with higher fatty acids than ordinary people, yellowish and thicker; the fatty acids reach a certain concentration and are decomposed by bacteria on the skin surface, mainly staphylococci, producing unsaturated fatty acids and emitting a foul odor. Its odor is similar to that of fox anal exclusion, so it is often called fox odor. Most patients with fox odor have a family history of inheritance, and some statistics show that there is a clear genetic tendency of about 60% or more. In addition, the ethnographic tendency of fox odor is particularly obvious, white people, black people, brown people suffer from fox odor in the majority, so they do not have fox odor instead of rare, fox odor in their population is not a disease, in the West, the English word for fox odor (B.O) bodyodor is the meaning of body odor. As the yellow race of body odor (fox) is extremely light, once who has a heavy body odor (fox odor is obvious), the surrounding people feel particularly pungent, and is generally considered a disease. Treatment of armpit odor: For patients with extremely mild symptoms, then it is possible to do without treatment, patients should bathe regularly, as well as change clothes regularly, keep the skin clean and dry, especially where there is a lot of sweat, so that it is not much for others and yourself, and no one will even find you have fox odor oh. For patients with mild symptoms, some can be treated by way of topical medication. In the early days, 20% to 25% aluminum chloride solution, 1:8000 potassium permanganate solution or 0.5% neomycin were often used to apply to treat. And more fashionable in recent years, most hospitals more commonly used is to use botulinum toxin injection or external used for treatment, the method is good for some patients with mild fox odor, but the disadvantage of the effect can only be maintained for six months, and after all, botulinum toxin, long-term injection is difficult to say whether there are no side effects. For the more serious symptoms of moderate to severe patients, it is necessary to achieve the purpose of treatment through laser or surgery. Laser and surgery have their own advantages and disadvantages. The advantages of laser are no hospitalization, no incision, no scars, no pain, but the efficiency of treatment is lower than surgery, generally speaking, the efficiency of laser is almost 60-80 percent, while the efficiency of surgery is slightly higher, can reach 70-90 percent, after all, a cut, of course, the effect is more reliable. However, the disadvantage is the need for hospitalization, open surgery, post-operative recovery time is also relatively long, to rest for two weeks, the hand is not easy to move, there are scars, and more often appear scar hard nodes. Laser treatment in the early days mainly used the old CO2 laser to simply cauterize, which has been eliminated for a long time because its scars are more obvious than surgery and the results are not as good as surgery. The laser treatment mentioned in this article refers to the new 1320nm laser that has come out in the past few years. The principle of its treatment is that the essence of fox odor is caused by sweat excreted by the sweat glands, so the sweat glands have a high water content, and there is a difference in the action of near-infrared wavelength lasers (mainly 1320nm, 1440nm, 1550nm) on water and other tissues of the skin, and this difference provides the possibility of selective laser treatment of sweat glands. In fact, the temperature of the sweat glands increases rapidly under the near-infrared laser beam, while the surrounding tissues are relatively only heated a little, so the sweat glands are selectively destroyed by the high energy of the laser beam for the purpose of treatment. The treatment itself is relatively safe because of the selective nature of the entire treatment process. The shorter the wavelength, the deeper the penetration, and the sweat glands are located in the deeper layer of the skin, because this condition determines that only the shorter wavelength of 1320nm laser can reach the depth of treatment, so the only laser that can be used to treat axillary odor is 1320nm wavelength, and 1440nm and 1550nm laser, although the same water absorption, but not for the treatment of armpit odor, generally only used to do simply to improve the skin quality. In view of the advantages and disadvantages of laser and surgery, in the choice of treatment methods, in my personal experience, if the economic conditions permit, you can try laser treatment once, a cost of more than a thousand, if the effect is really very obvious, then you can continue to laser treatment without surgery, after all, the laser does not open, no scars, treatment is convenient, with the treatment away. If a laser effect is not obvious, then you can consider switching to surgical excision. Of course, whether laser or surgical excision, regardless of the treatment effect is good or bad, can not guarantee absolute non-recurrence, the recurrence rate of both almost 5-10%, so after surgery patients must pay attention to maintain the habit of hygiene and cleanliness, diligent change of clothes, more bathing, keep the local dry ventilation, in order to reduce the possibility of recurrence.