Armpit odor, also known as fox odor, is a kind of body odor, the smell is heavy, easy to make the next person feel uncomfortable. According to statistics, as many as 80% of people in Europe and the United States have fox odor, while fewer people in the East, about 10%. However, Westerners think this is a common physiological phenomenon, and do not care. In the East, although there are fewer people with fox odor, they are always embarrassed by the smell of it. What are the causes of fox odor? Generally speaking, there are two types of sweat glands, one is the exocrine gland, also known as the small sweat gland, which is distributed throughout the body and secretes 99% of water and 0.5% of salt. The other is the parietal gland, also known as the sweat gland, located in the dermis of the skin, opening at the root of the hair, only in the armpits or pubic area and eyebrows, will secrete a thicker liquid, containing sebum, protein and iron. It is then decomposed by the bacteria in the armpit, forming a bad odor. Fox odor is hereditary and is associated with gender and racial differences. This is related to the physiological structure and function of the sweat glands. As the sweat glands secrete abundantly in adolescence, so the disease is mostly seen in young adults, with age, the human body aging, the sweat glands also gradually degenerate, the symptoms can be reduced or disappear. Most patients have a family history of genetic predisposition. Traditional axillary odor surgery – skin sweat gland excision This procedure cuts off all the skin and subcutaneous fat in the axilla with hair, although all the sweat glands on the axillary skin are removed, the efficacy is reliable and can completely cure the axillary odor, but the damage is too great, resulting in local skin defects and more bleeding. Due to the large tension of the skin during suturing, it restricts the activity function of both upper limbs, easily causing wound infection and suture detachment, resulting in larger surgical scars and affecting the activity function of the upper limbs. The “emerging” axillary odor surgery – minimally invasive treatment of axillary odor in recent years a number of hospitals to carry out minimally invasive treatment of axillary odor, and crowned with “nano”, “Korean “The main way to do this is by using a small, invasive procedure. In fact, the main surgical method is to send a suction device under the skin through a small incision and remove the subcutaneous fat by repeatedly scraping and suctioning. The incisions are small, but not minimally invasive. Surgeons know how traumatic repeated scraping in the tissue can be. Moreover, the procedure is poorly performed and has a very high recurrence rate after surgery. This is because large sweat glands cannot be removed by just scraping. The procedure is claptrap and self-deceptive.