Do your dog's paws make a clacking sound as he walks across the room? If so, your pup may need his claws clipped.
Overgrown nails may not sound like a huge issue for dogs, but they actually can cause problems. For one thing, they can easily snag and tear on things. This can cause painful rips, and can even lead to infections. Plus, they're simply uncomfortable, just as long toenails are for us. Your dog may adjust his gait a bit to compensate, and he may shift his weight around. This puts a lot of stress on his bones and joints, which can contribute to or aggravate bone/joint issues, such as arthritis.
If you aren't sure how to clip your dog's nails, ask your vet to demonstrate proper techniques. You may find it useful to get a clipper with sensors. You can also contact your veterinary clinic Thorold, ON to schedule an appointment.