Tricot head cap bandage is suitable for bandaging the top of the head and both sides of the face, occipital trauma. Triangular scarf cap bandage on the top of the head and both sides of the face, occipital abrasions, cut line injuries, open wounds, etc. have a protective effect, especially during wartime firearms injuries and car accidents and other accidental injuries, can be applied to triangular scarf cap bandage method, the bandage should be carefully examined the location of the wound, the size of the wound, the depth of the wound, the degree of contamination and the characteristics of the foreign body. Wound bandage action should be fast, accurate, light, firm. The bandage should not be too tight, so as not to damage the blood circulation and compression of the nerve. Triangular towel cap type bandage method is conducive to early wound healing, widely used in first aid. It is recommended that patients take timely and targeted bandaging method according to their own symptoms, so as not to delay the condition and cause serious consequences.