After the operation of mixed hemorrhoids, the possible complications mainly include postoperative bleeding, anal sphincter insufficiency, anal stenosis, etc. The details are analyzed as follows: 1. Postoperative bleeding: mostly seen in more serious mixed hemorrhoids patients, if improper care after surgery, resulting in premature detachment of the ligation line, there may be postoperative bleeding. 2. Anal sphincter insufficiency: if the external sphincter is removed during the mixed hemorrhoid surgery, it will lead to anal sphincter insufficiency, which is manifested as anal incontinence and increased frequency of urination and defecation, which seriously affects the patient’s quality of life. 3. anal stenosis: mixed hemorrhoid surgery is often a large incision, so there is a scar healing process after surgery, scar contraction can cause anal stenosis. If constipation occurs during this period, it may also cause anal fissure. To summarize, there are still some complications after surgery for mixed hemorrhoids, and patients are advised to decide on the treatment plan according to their own situation and the doctor’s advice.