Why Chihuahuas Are Aggressive And What To Do About It.

Why Chihuahuas Are Aggressive And What To Do About It.

Chihuahuas are one of the smallest dogs in the canine world. However, they are very loyal and loving towards their family. Sometimes their loyalty will lead to conflicts with other animals and people. There are multiple reasons Chihuahuas are so aggressive and they are not only because they are so small in size. Here in this blog, we will discuss everything about why Chihuahuas are aggressive and tips to overcome this problem.

Why Are Chihuahuas Aggressive Sometimes

Not Good With Strangers

Chihuahuas are one-person dogs and they become aggressive when they meet a new person in their life. They don't like new faces and every time they find themselves in that situation they feel fear and start to act aggressively.

Protective of Their Territory

Chihuahuas sometimes become aggressive because they are protecting their territory. When a stranger appears on his territory, he feels threatened and instantly goes into protective mode. Ultimately, they start growling and running around in aggression.

Due to Anxiety

As you know, Chihuahuas love to be around their owners and when they are left alone for a long time, they will suffer from separation anxiety. Those Chihuahuas that experience a high level of anxiety show more aggressive behavior. When they are anxious, they go into destructive mode and start barking and running.

Health Issue or Injury

Aggression in Chihuahuas is sometimes influenced by health problems or injuries. Dogs are certainly good at hiding their pain, and they often do this in order to protect themselves from predators. But this could lead to problems as the owner might not find out until the pain becomes serious. 

Tips To Overcome Aggression in Chihuahuas


Aggressive behavior in Chihuahuas can be resolved with proper obedience training. If your dog is well trained, that can come in handy when your little dog is surrounded by strangers or other animals. If your dog is good with other animals, you should reward him with treats.


It is very important to socialize with your dog from an early age to reduce aggressiveness. It is essential to socialize them from birth to one year of age. To socialize your Chihuahuas, you should take them to the park or outside, where they will meet new people and animals.

Take Them to the Vet

Some Chihuahuas show aggression due to health problems. It's always a good idea to take your pup to the vet for a full body checkup once a year. The vet will run the necessary tests and check for any health-related issues.

Spaying or Neutering

Chihuahuas become aggressive due to their hormonal changes. Most veterinarians recommend spaying or neutering your dog as he becomes an adult.


Chihuahuas are very intelligent and sweet pets, but they can also be very aggressive. As a good owner, it is important to diagnose the reasons behind this aggressiveness and resolve these issues to ensure that your dog does not behave aggressively in the future.

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1 comment

My Chihuahua is aggressive with strangers another dogs or kids. What to do now that I will become a grandmother how to train Coco Chanel to not being aggressive towards the new born?

Vivian Lopez

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