Constipation is also always farting and constipation caused by intestinal peristalsis function decline, intestinal flora imbalance and other factors related. 1. Decline in intestinal peristalsis: constipation will show a decrease in the number of stools, dry stools, stools can not be discharged smoothly. When intestinal peristalsis decreases, a large amount of gas gathers and is constantly expelled to the outside, causing the symptom of farting. 2. Intestinal flora imbalance: long-term constipation patients, intestinal flora imbalance, intestinal gas-producing bacteria increased the proportion of decomposition of food after the production of a large number of gases, the emergence of the symptoms of constant exhaust. It is recommended that patients with constipation and farting symptoms should go to the hospital in time to get a clear explanation of the cause and active treatment.