Biting is as natural a behavior to dogs as barking or wagging
their tails. It can manifest for several reasons.
One trigger that will cause virtually any dog to bite is pain
and/or fear. For example, if a dog has been involved in an accident or hurt in some other way, he may bite out of fear, anxiety, confusion or pain. Some common triggers are loud
noises such as thunder or fireworks. Please try to understand
how stop puppy biting and this knowledge will help you in the long run. If you attempt to handle your dog, even for reassurance during these times he could bite. It may be that he's injured in some way and you are actually trying to help him when he bites. Be aware of this and act accordingly.
If a dog finds himself in a corner, so to speak, he may bite out of self preservation. For example, he may be hiding under the sofa during a thunderstorm. If you reach in to pull him out he may bite you out of fear and anxiety. After all, he can't simply ask you to give him a moment to collect his thoughts. It is an instinctual reaction. Nothing personal. So pay attention to learn how stop puppy biting.
Playing rough with your puppy can be lots of fun for both of you. But, like any two kids rough housing someone is likely to get carried away. If you get nipped or bitten in this kind of circumstances be aware that it isn't really negative aggression and be more careful next time.
Dogs need to have plenty of socialization as puppies. If that didn't happen or wasn't done right your dog may show aggression to strange people and animals. To deal with this problem you'll need to work on social skills a little at a time until your dog develops a healthy attitude to others and no longer feels the need to be aggressive or dominating. A little practice and you will be able to stop puppy biting.
If, after doing your part to help your dog behave correctly, you are actually bitten, not as a result of play or fear or pain, you really need to seek the help of a professional to sort out what may be complex issues with your dog. This is no laughing matter and must be dealt with promptly and professionally. Dog Breeds
reasons. 
