I don't know whether you are talking about plastic surgery, general surgery or wound suture, because cosmetic suture requires the needle spacing to be as small as possible to reduce possible scars and tension. Surgery and suture of the wound depend on the blood supply of the wound to judge the suture situation. Those with good blood supply can be closer to the edge, while those with poor blood supply and high tension need to be farther away. Generally, the needle pitch can be1-1.5cm.. Properly adjust the needle distance of fine joint trauma or surgical suture to 0.3-0.5 cm, and the needle distance of abdominal and skin relaxation can be about 1-2 cm.