More than 20 days after hemorrhoid surgery, sitting is generally not a problem, however, sedentary do not know exactly how long it is. 20 days after the surgery the incision should be healed almost, from the point of view of risk is not any risk. Sitting for a long time is basically not a problem if the patient has no discomfort or pain. If after sitting for 30 minutes or an hour, the patient feels significant pain and discomfort, stand up, get some relief and sit down again. About 30 days or even 40 days, the wound has basically healed, and you can do what you need to do as a normal person, without too much worry. If the patient is not very assured of the situation, after 20 days you can go to the hospital for another follow-up, if the doctor sees no problem, you can boldly rest assured to do their own things.