If the dog's nail is broken, the owner needs to clean the wound first, then use a cotton swab dipped in medical alcohol or iodine to disinfect the wound to avoid infection, and finally wrap the wound with gauze. Dogs’ nails are too long and can easily break during exercise. Therefore, it is best for owners to trim their dogs’ nails regularly, but be careful not to cut them to the point of bleeding. If you can’t cut them yourself, you can go to a pet store to find a professional. Staff pruning.