Clamp hemostasis is the use of vascular forceps to quickly and accurately use hemostatic forceps to clamp a visible bleeding point to achieve hemostasis. Clamp hemostasis is generally the most commonly used method of hemostasis in surgery, and is also the most basic method of hemostasis. Hemostatic forceps should not be blindly indiscriminate clamping, if the bleeding point due to more bleeding and can not see the location, then the gauze can be used to compress the dilution, see clearly before clamping, clamping tissue should not be too much, so as not to damage the normal tissues around the blood vessels. Superficial small blood vessels, simple clamping hemostasis can achieve the purpose. Larger bleeding points, need to be ligated first with a wire after clamping, or use electrocoagulation. The threads used for ligation, when left in the tissue for a long time, may cause infection or tissue rejection, affecting wound healing. Therefore, after ligation, the threads are usually cut as short as possible to avoid affecting the healing of the surgical incision. For some clamped tissues are more, the free ends of clamped tissues are too short, and blood vessels are present in the clamped tissues, ligature can be performed to avoid bleeding. For large muscle bundles should be taken first clamp, then cut, and finally suture, in order to be safe and reliable, the commonly used suture method is penetrating suture method.