Constipation is a relatively common complication after anorectal surgery, and constipation after anorectal surgery can easily cause local edema, pain, bleeding, and even affect wound healing. Therefore, it is especially important to prevent and treat post-anorectal constipation. The causes of constipation after anorectal surgery can be broadly summarized as follows: 1, dietary factors, such as over-eating fatty, drinking too little water, spicy food, drinking and smoking; 2, mental factors: post-anal surgery patients because of anal pain, may produce a series of psychological changes such as anxiety, tension, fear, excitement sympathetic nerve, so that the gastrointestinal tract peristalsis is weakened; 3, post-operative pain, fear of defecation, forcible stool dry; 4. Post-anal surgery patients due to anal pain or other discomfort, resulting in reduced activity, bed time significantly prolonged, resulting in the gastrointestinal tract peristalsis slowed. How to prevent and control constipation? First of all, post-anal surgery patients should adjust their psychological state, maintain a relaxed mood, do not be afraid of defecation because of anal pain, before defecation, you can use appropriate painkillers and cork, in order to reduce anal pain and promote the smooth discharge of stool; secondly, develop good dietary habits and defecation habits, drink more water, eat more fiber-rich food, such as celery, spinach, leeks, bananas, apples, etc.; appropriate activities Finally, if constipation occurs, post-anal surgery patients should not be nervous, tell the doctor in time and apply appropriate laxative and stool softening drugs.