Farting after moxibustion is caused by intestinal peristalsis becoming faster and expelling intestinal flatulence. In Chinese medicine, cold is the main collector and attractor, and cold coagulates. When there is a lot of cold coagulation in the human body, it will lead to relatively poor gastrointestinal peristalsis in the body. Through moxibustion treatment, the action of the body acupuncture points, meridians, etc., can play a role in warming the meridians, warming the internal organs, and relieve intestinal flatulence. Therefore, many people through the moxibustion treatment, intestinal peristalsis become faster, the phenomenon of farting will occur. Farting is one of the ways to expel cold from the body. The daily treatment by moxibustion can stimulate the positive qi in the patient’s body, and at the same time, it can fight with the evil qi against each other, and promote the discharge of evil qi from the body. Moxibustion also has the effect of activating blood circulation and removing blood stasis, warming and dispersing cold, which can promote the metabolism of the blood and at the same time enable the evil qi in the body to be discharged from the body. It is recommended that patients pay more attention to warmth during moxibustion, and drink more water after moxibustion, which can promote the effect of detoxification.