Swelling after hernia surgery tends to gradually decrease and disappear in 5 to 7 days. After hernia surgery, there will be slight swelling in the area where the surgery was performed. In most patients, the swelling starts to decrease around 3 days after the surgery, and most of it disappears completely in around 5 days. During this time, it is important to keep the wound clean and dry, and to change the dressing and sterilize it on time. Some elderly or poorly nourished patients may experience a delay of 1~2 days, and most of them will be able to reduce the swelling to the point of disappearing in about 7 days. If the wound becomes infected after surgery, the swelling may also be delayed. The exact amount of time it takes for the swelling to go down depends on how well the infection is controlled, and in most cases, the swelling dissipates after the wound infection has resolved. You can consult with your surgeon to determine how long it will take for the swelling to go away after hernia surgery, depending on how well the wound is healing.