Usually, it is inevitable to be slightly injured in sports, and it is even more unlikely that serious trauma will lead to massive bleeding, shock, suffocation and disturbance of consciousness in daily fitness. Most open wounds during exercise occur in limbs, and many reasons are caused by friction between skin and ground after falling.
Although there is no great danger, once you are injured, you should take correct steps to deal with it. Wash the wound with clear water or normal saline first, then disinfect the wound with medical alcohol, and then smear the wound with red or purple liquid. Generally speaking, small wounds can be left uncovered, but the wound surface should be kept clean. When the wound is large, it can be wrapped with sterile gauze. Abrasions near joints generally need to be bandaged, because chapping will affect joint activity, and once wound infection occurs, it is easy to involve joints. When the wound is deep and the pollution is serious, you should seek medical attention in time, inject tetanus shots and take antibiotics orally to prevent infection.