Anal swelling is not a sequela of rectal surgery, it may be caused by postoperative inflammation stimulation, which can be treated with anti-inflammatory drugs such as levofloxacin tablets under the guidance of the doctor, and pay attention to the postoperative care at the same time. Rectal surgery can be generally divided into radical resection, local resection and palliative surgery, the specific surgery needs to be judged according to the actual situation of the patient. Anal swelling after surgery may be caused by postoperative inflammatory stimulation. Patients can go to the hospital for a specific examination, after the cause is clear, under the guidance of the doctor to use amoxicillin capsules, levofloxacin tablets and other medications, and at the same time to maintain a smooth bowel movement, eat more fiber-rich vegetables and fruits and so on. Anal swelling generally does not belong to the sequelae of rectal surgery, postoperative to change the medicine regularly, if the symptoms worsen, should consult a doctor in time, follow the doctor’s instructions to perform, to avoid aggravation of the condition.