The selection of suture should be based on its own material characteristics and the healing needs of the surgical suture tissue to ensure that the suture tensile strength can help the tissue to recover to the self-healing. At the same time, the choice of suture has a certain relationship with the personal experience of the surgeon. Therefore, the surgeon must be familiar with the healing speed of different tissues and organs and the characteristics of various sutures, and choose the appropriate suture. The principles below can be used as a guide for choosing sutures:

①When choosing sutures, attention should be paid to various patients’ own conditions; the characteristics of the tissues involved, and possible postoperative complications and other factors will affect the speed and process of postoperative wound healing (such as: the elderly, diabetes, obesity, respiratory diseases, malnutrition, infection, weakness, etc.);

② Absorbable sutures should be used when sutures are sutured in tissues that can heal quickly. This is because the tension loss speed is synchronized with the speed at which the tissue recovers its strength, and it can be completely absorbed by the tissue with good tissue compatibility. Once the wound is healed, there will be no foreign body in the tissue. Special reminder: In the gastrointestinal tract, bile duct, urinary tract inner layer, myometrium and other parts, because foreign bodies in high concentration crystals can cause precipitation or become the core of stone formation, absorbable sutures should be used;

③When the suture is sutured to tissues that are slow to heal or where premature absorption of sutures may lead dangerous consequences, such as fascia, cartilage, ligaments, tendons, bronchus, esophagus, and grafts that require long-term fixation, non-absorbable sutures or absorbable sutures with longer effect should usually be used. For tissues that can never be restored to their preoperative strength, sutures that can maintain tensile strength for a long time should be selected;

④For potentially contaminated or infected wounds, single-strand fiber sutures or absorbable sutures should be used, and multi-strand fiber sutures should be avoided, because foreign bodies in the tissue can turn contamination into infection;

⑤For wounds that emphasize cosmetic effects, pay attention to precision when suturing; after the operation, the wound must be kept closed for a long time to avoid being stimulated by foreign bodies. Therefore, the thinnest single-fiber suture with the lowest tissue response should be used, such as nylon and polypropylene sutures. At the same time, skin sutures should be avoided during the operation, and subcutaneous sutures should be performed as much as possible;

⑥ The selection of suture specification: the thinnest suture that can help the tissue to heal safely and with the lowest tissue response should be selected.