If your dog’s nails are cut to the bleeding line, you need to help the dog stop bleeding immediately and disinfect it to avoid infection. Do not let the dog run around. At the same time, you must comfort the dog to avoid the dog’s fear of nail cutting. Afraid of cutting nails. Dog's nails are very sensitive, and if they bleed after being cut, the dog will feel pain, so when trimming your dog's nails, you must be careful not to cut to the bleeding line.