Hemorrhoid surgery twenty to thirty days still edema, belong to the abnormal phenomenon, may be due to wound infection and other reasons. Usually hemorrhoid surgery will cause trauma to the anal area, causing tissue edema, congestion occurs. Under normal circumstances, if the patient’s physique is good, usually need about 8 days edema can disappear, if the patient’s metabolic ability is poor, usually need about 15 days edema can completely disappear, twenty or thirty days after the operation is not swelling is not normal phenomenon, is generally due to wound infection. Infection caused by improper care after hemorrhoid surgery will lead to pain in the anal area of the patient, skin heat, redness, edema, while the surgical wound will have exudate, anal local itching, moist symptoms, if the situation is serious, may lead to the emergence of perianal abscess, the patient should consult a doctor in a timely manner. Hemorrhoid surgery after the affected area for a long time edema, it is recommended that patients should go to the hospital in time to review, clarify the cause of the disease, and give appropriate treatment as soon as possible, to avoid aggravation of the condition, affecting the normal recovery after surgery.