少商穴,为手太阴肺经的止穴,肺经井穴,五行属木,别名称“鬼信穴”。该穴位于拇指桡侧指甲角旁0.1寸,作拇指指甲下缘和桡侧缘的垂直切线,其交点是穴。《会元针灸学》载:“少商者,阴中生阳,从少。五音六律,分宫商角徵羽,从商,从肺,肺经之根,故名少商。”少商穴具有通经气,活气血,清肺逆,泄脏热,通窍络,苏厥逆,利咽喉,消肿痛之效。本穴的远道主 Shaoyin points, the hand Taiyin lung by Zhi Zhi points, lung Jingjing, five elements are wood, do not name “ghost letter hole ”. The point is located on the thumb radial nail side 0.1 inches, the lower edge of the thumb nail and the radial side of the vertical tangent, the intersection point is the hole. “Huiyuan Acupuncture and Moxibustion” contains: “less merchants, yin and yang, less from the five tone six law, the Chamber of Commerce imposing feathers, from the business, from the lungs, lungs root, hence the name of traders. ”Shaoyin acupoints with qi, live qi and blood, Qingfei inverse, dirty dirty heat, Tongqiao network, Su Jue inverse, Lee throat, swelling and pain effect. The distance of the main point of this hole