Old farting after perianal abscess surgery is mostly considered to be caused by postoperative digestive tract dysfunction, which is generally a common symptom after surgery. On the one hand, perianal abscess is an acute infectious disease, the surrounding mucosa is congested, edema, affecting the normal gastrointestinal peristalsis, at the same time, the infection may make the intestinal flora imbalance, gas-producing bacilli excessive, resulting in an increase in gas, the patient appeared to fart a lot of symptoms. On the other hand, perianal abscess surgery mostly adopts intrathecal anesthesia, anesthesia reaction affects the normal gastrointestinal movement, after the anesthesia reaction disappears, gastrointestinal peristalsis can be accelerated, and farting frequent symptoms appear. The above situation, generally belongs to the normal reaction after the operation, patients do not need special treatment, observe whether there are other changes, under normal circumstances, after a few days will gradually improve. After the operation, pay attention to changing the medicine regularly and keep the wound clean and dry. Adjust the reasonable life and diet habits, avoid spicy stimulating food, avoid drinking alcohol, keep the bowel movement, regular follow-up. It is recommended that if the patient has any obvious discomfort symptoms, he should go to the hospital in time, and the doctor will give the appropriate guidance to deal with, and actively cooperate with the doctor’s treatment.