While clipping hair itself is not painful, if not done well, it can be a source of pain to your dog. Here are a couple of ways to avoid it: - Groom your pet regularly: This will avoid stubborn matting of hair and keep the fur short to minimize matted hair - Use a good quality clipper: A regular clipper would get stuck in heavily matted hair, hence tugging and pulling it will cause pain - Make sure your dog is bathed regularly and has clean fur: Untidy and messy hair when matted will be more difficult to deal with - Do not use a high speed and sharp blade clipper on your first time: If you are learning, it is advised to use medium speed while you get some practice - Do not clip your dog's hair when they are upset or angry: Make sure the time you choose to groom your pet is relaxing and your dog is not fidgeting during this. Having a cooperative animal is just as important as having a good tool to work with