Reasons for cutting dog nails:

1. Prevent excessively long nails from causing damage to the foot pads. If the nails are not trimmed for a long time, the nails will easily grow abnormally and even grow into the dog's foot pads. The dog will feel a tingling sensation when walking. Over time, it will also cause inflammation and abscesses in the foot pads.

2. Prevent the dog’s nails from breaking during activities. If the nails are too long, the dog can easily get hooked on the nails during daily play, running and jumping, causing the nails to break and bleed due to external force.

3. Prevent dogs from harming other people or animals. Dog nails are too sharp and it is easy to accidentally scratch others when playing with humans or companions. Or when fighting with other animals, it is easy to cause serious harm to the other animal.

4. Prevent dogs from damaging furniture, etc. If your dog's nails are too long, it will be very uncomfortable. They will scratch furniture, sofas, etc. to sharpen their claws. They may also scratch curtains, sheets, etc. during play.

5. Prevent nail blood lines from being too long. If the dog's nails are not trimmed for a long time, the blood lines will grow longer and longer. In the end, the only way to clean the nails is to cut off the toes, which is also very painful for the dog.