Lungs and large intestine are mainly manifested in the following symptoms: when the lungs feel wind-heat or evil-heat depletion of the lungs, there will be symptoms such as inability to pass stools, dry stools, etc.; when the lungs feel wind-cold or cold-dampness, diarrhea can occur, stools, etc.; on the other hand, when the stools are inability to pass, the abdominal distension will also occur when the shortness of breath, the symptom of suffocation. Lung and large intestine form an external and internal relationship through the meridians. The large intestine is on the surface and the lungs are on the inside. Lung qi, Xuanfa, Suhui function can help the dregs of the large intestine downward conduction, so that the normal discharge of stools, lung qi depression can lead to viscera qi can not pass and the stools do not regulate (stool abnormalities). Lung qi is not sinking, then shortness of breath, chest tightness, abdominal distension and other symptoms can occur. It is recommended to consult a Chinese medicine practitioner when lung and large intestine diseases occur.