My German Shepherd bites my brother. How to stop dog aggression?

Hello, German Shepherds are commonly aggressive and may require intense training and socialization to be good companion animals. It sounds like he has become quite a dangerous animal, especially to your mother. Please take his aggression seriously and do not allow small children or animals to be around him, as he has a history of severely hurting people. He also needs to maintain his rabies vaccinations to ensure he is not able to spread a fatal disease with his bites. I would recommend seeing a veterinary behaviorist, a good dog trainer, as well as pursuing neutering him. This will be the best way to try to make him a safe animal to live with. I hope this is helpful. Thanks for using Petco Pet Education Center, formerly Petcoach.

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach. I am sorry to hear that this has happened. This behavior is certainly concerning as you don't want Boston to cause serious harm to your wife or anyone else for that matter. I would recommend taking Boston to a behaviorist for training and other recommendations. There are trainers that will take Boston for several weeks for the training or trainers that will come to your house for in home training. At 4 months of age, this is easier to correct than when he is 4 years old. Now is the time to take action as it is much easier to train a puppy. I hope this helps and for now, please take the necessary precautions and keep Boston away from anyone until he is appropriately trained.

I recommend speaking to Sammie's vet about a referral to a professional behavioral expert. I never recommend owners work with aggressive behavior on their own due to the danger associated. A behavioral expert would be best to help with this behavior. Have her seen by her vet over the holidays. Best of luck, I hope this helps!

Yes, shepherds are a very dominant breed. You need to get this behavior under control before she gets much older. I don't know if you have any professional dog trainers where you live, but if you do, I suggest you consult with one. Dominance behaviors, if you try to correct in the wrong manner, can be very dangerous. A professional can help you do this the right way and safely. If you do not have access to a professional trainer then I suggest you read this website and try to incorporate the training methods described. ( https://www.cesarsway.com/dog-psychology/pack-position/5-keys-to-handling-a-dominant-dog ) ( http://inch.com/~dogs/taming.html ) Hope this helps. Best wishes.

Thanks for using Petco Pet Education Center, formerly Petcoach! This is certainly possible and recommended but this usually requires in person training by a qualified dog trainer. I recommend you consider contacting a qualified dog trainer to work with you in person. Good luck and have a good day!

Because Milo is still so young there is definitely time to correct her aggressive behavior. You should start with basic training commands (sit/stay/come) to help establish the fact that you are the one in charge. It is also important to make sure she is getting plenty of exercise. You should take her on fast-paced walks for 20-30 minutes at least twice a day. I would also recommend that you seek the help of a veterinary behaviorist to help you identify and treat Milo's underlying problem. Good luck.

I hate to hear that about Jimmy. Aggression is a very complex problem and one that may be difficult to fix without a trainer. Aggression can be related to dominance, possessive behavior, fear or anxiety and each one needs to be addressed in a different fashion. The trainer will be able to determine the cause. The trainer will then work with you and your pet to modify both of your behaviors to meet a common goal. There are several different training methods so you will need to find the one that works best for you and your pup. You should also pick up a few books about dog behavior and dog training so that you can learn to recognize your pet’s body language. By knowing what he is saying, you be better able to react before he reacts. Neutering Jimmy can also help to reduce undesired behavior. I hope this at least points you in the right direction. Please post again with any further questions.