My Aggressive Puppy Is Biting & Not Bonding With Humans

Puppies naturally play rough, and it's rarely real aggression.
little dogs playing in nature image by dinostock from <a href=''></a>

Puppies are naturally rough when they play. They jump, paw, bite and climb on each other and they transfer the same behaviors to the people they interact with. It is rarely a sign of true aggression. It's not uncommon for new puppy owners to see all the biting and chewing and growling and believe their puppy is aggressive and not bonding with them. Usually, the puppy is fine, but needs guidance from its owners to learn to interact appropriately with humans. If you are concerned about aggression problems with your puppy, seek professional help, even if it turns out to be simple puppy play. Either way, you and your pup both need to learn proper ways to interact.

Step 1

Write down a description of the problem behaviors as they occur, including as much detail as possible about what was happening at the moment and about 10 minutes before the behavior.

Step 2

Your pup can't tell you if something is hurting. All it can do is snap or growl.

Puppy eyes image by Marfa Faber from <a href=''></a>

Take your puppy to the veterinarian for a thorough examination. Sometimes hidden medical problems can cause aggressive behavior, or slow the bonding of the puppy to its new family.

Step 3

It's often difficult to distinguish between play and real aggression. These pups are playing.

Dogs Play Fighting image by Tourmalet06 from <a href=''></a>

Call a veterinary behaviorist or a trainer with experience in behavior problems for an evaluation of your puppy's behavior. Though it is common for new puppy owners to mistake normal puppy play and behavior for aggression, it is imperative that a professional evaluate the puppy to be certain this is not a true aggression problem and to instruct you in the proper handling of your puppy. If you have mistaken puppy behavior for aggression, then it's clear you need some instruction in reading your pup's signals and preventing future behavior problems.

Step 4

Training is essential for every puppy, but especially one that is playing too rough or is aggressive.

puppy of a shepherd dog image by Nataliya Kuznetsova from <a href=''></a>

Train your puppy at home and also in a kindergarten or obedience class. Continue training classes and working at home with your pup for at least the first three years.

Step 5

Puppies should play with other puppies daily.

spielende parsonwelpen image by gysmo11 from <a href=''></a>

Exercise your puppy daily. If a puppy is playing too rough and is hard to control, more likely than not it's not getting enough exercise. Puppies need on-leash and off-leash exercise each day, as well as some playtime with other puppies. Playing with other puppies helps your puppy to learn dog manners, which helps your puppy behave better with people. Find a clean dog park that has a separate play area for young puppies, and take your puppy as often as possible. Daily is best, but at least three times a week is a must.

Step 6

Reward calm behavior and your pup will learn to be calm more often.

sit image by Keith Frith from <a href=''></a>

Give your puppy attention and training treats when it is calm, sitting, playing with its toys or otherwise behaving positively. Ignore the pup when it is jumping, biting or whining.

Step 7

Put the puppy into the crate or a puppy exercise pen on a regular schedule for napping or chewing on its safe chew toys. Don't leave the pup in a crate for long periods of time. It should be used a you would use a playpen for a baby. Put the puppy in the crate when you can't supervise it, when it needs a nap or is over excited and needs to calm itself by chewing.

Step 8

This is a cute game while the pup is this young, but can quickly become dangerous, even if the puppy is only playing.

kind mit welpe image by N. Mellenthin from <a href=''></a>

Avoid roughhousing with your pup, and teach your children to never run or squeal around the pup. Rough play teaches the puppy that rough play is acceptable. Dogs can't tell the difference between playing with a person who likes rough play and one who doesn't like rough play or is easily hurt. Tug is OK, but you must be the leader. Don't let children roll on the floor with the puppy or play chase with it.


  • It's necessary for your pup to play with other pups, but don't forget health requirements. If you aren't sure the dog park requires vaccines to be up to date, find some trustworthy puppy owners and arrange a play group, or pay for your pup to go to a well-run puppy daycare.

  • Keep up the vaccinations and other health checks for your puppy. The common puppy diseases are deadly.


  • Do not work with any trainer or behaviorist who uses harsh methods. There should be no hitting, choking or slinging on the leash. Yelling is not necessary. Nothing harsh is necessary in order to be the pup's leader.

  • Consider a Gentle Leader head halter to give you better control over your pup, and assist you in teaching correctly.

Items You Will Need

  • Leash
  • Collar
  • Crate
  • Training treats
  • Toys