General small wounds or did not hurt the large blood vessels, bleeding less, can be sterilized with gauze directly press on the wound for a period of time, if there is no coagulation function of the disease, it will soon be able to stop.
Larger wounds or injuries to large blood vessels or arterial vessels, you can also use pressure to stop bleeding, it is best to use gauze, emergencies can also be used with towels, clothes, etc., and force pressure on the bleeding parts, and immediately seek medical attention. You can also press on the proximal artery to reduce the blood supply to the bleeding site.
Wound compression and arterial compression are more effective when used in combination.
Wrist cut, to see whether the cut to the artery, the wrist has two important arteries, respectively, ulnar artery and radial artery, the thumb side (Chinese medicine pulse numbering that) called the radial artery, on the opposite side of the little finger side of the artery called ulnar artery.
If the two arteries are not injured, it is usually not a big problem, and you can use a dressing (gauze, towel, clothing, etc.) to cover the wound directly with a pressure bandage to stop the bleeding.
If the ulnar radial artery is cut, because these two arteries are not very large (but must be careful), you can also direct pressure, or add the proximal artery pressure, the artery of pressure is the brachial artery, a little bit on the upper inner side of the fossa of the elbow of our hand, you can feel. Once palpated, use your thumb (with strength and effort) to press the artery onto the top of the humerus (the section of bone from the elbow to the shoulder called the humerus), and this will assist.
Injury bleeding to be cautious, especially in large blood vessels (you can see the amount of bleeding, speed, color to determine), must be the first time to send medical attention ！！！！
Hope to help you, but also other comrades to correct. (wrote it myself oh, I hope you are satisfied)