If your dog's nails bleed after cutting them, you need to stop the bleeding immediately. Press the dog's paws and wait a few minutes for the bleeding to stop. Then use a sterilized cotton ball to wipe the dog's nails to avoid bacterial infection. When cutting your dog's nails, be sure not to use scissors to create bloody lines. If you use scissors to create bloody lines, your dog will feel pain and will have a psychological impact on nail cutting in the future, so you need to pay more attention when cutting your nails.