《黄帝内经·灵枢·邪气藏府病形》
肺脉很小的，会出现阳气虚而腑气不固的泄泻；微小的，会发生多食善饥的消瘅病。肺脉很滑的，会出现喘急上气；微滑的，会发生口鼻和前后阴出血。
小甚，为泄；微小，为消瘅滑甚，为息贲上气；微滑，为上下出血。
Those with a very small lung pulse experience diarrhea due to weak yang qi and deficiency of the visceral qi. Those with a slightly small pulse experience rapid emaciation despite excessive hunger. Those with a very smooth lung pulse experience shortness of breath. Those with a slightly smooth pulse experience bleeding from the mouth, nose, and genitals.