The Chihuahua is the smallest breed of dog recognized by the AKC but has one of the biggest personalities in dogdom! “Sassy” is one of the key terms used to describe these tiny dogs. Bred to be a companion first and foremost, this breed prefers living indoors and should never be relegated to spending all of their time outside. Even a small apartment is normally enough room for a Chihuahua. They can be trained to use a litter box, although this convenience does not mean they should never be allowed a walk outdoors! Although they need very little exercise, all dogs should be given fresh air and the structure that a walk provides.
Well-bred Chihuahuas are loyal and loving almost to the point of obsession! Most will choose their “favorite” person (if owned by a family) and follow them wherever they go. Some can become intensely over-protective and occasionally aggressive when other people approach “their person”. This can be prevented by establishing rules and boundaries early on, and giving them regular obedience training. Just because the Chi is small does not mean they get a “pass” for behaving badly!
As mentioned above, there is a range of personalities in the breed. Some are very active while others prefer to sleep much of the time. Some are little spit-fires while others possess a laid-back attitude. Some love to be trained while others are seriously stubborn. Some of this variability has to do with how the dog is raised but genetics play a very big role. Want a particular temperament in your Chi? Meet relatives of potential puppies! This will go a long way in getting the dog that you want. However, almost all Chihuahuas are clownish, quirky and comical – these traits are practically hard-wired!
The Chihuahua is not the best dog for a family with small children – partly because of their delicate bodies, but also because they are not patient or forgiving with rough handling! They may or may not get along with other dogs. If the other dog is another Chihuahua or similar tiny breed, the chances are better. If meeting a strange dog while out on a walk, they may behave badly and must be taught to be a good citizen. With strange people, the breed is standoffish and reserved. 
This breed is a comfort lover and will seek out warm beds, blankets and other comfy places! They also love the sun and anyplace else that is warm. If you have two Chihuahuas, they will probably curl up together for warmth! The breed is also a great traveler – put their favorite blanket in your car (preferably inside a crate for safety) and they’re good to go! Their small size makes it very easy to bring them to all sorts of places.
Chihuahuas are notoriously difficult to housebreak. Prepare to spend a lot of time teaching this (normally simple) skill! And just when you think that your Chihuahua has been housebroken… a rainy day might just ruin any progress you thought you had made! This breed doesn’t like to go outside if it’s wet. One other common behavior problem is barking. The breed is known for being excessively “yippy”.
The Chihuahua is a generally healthy dog that has the potential for living a very long time. Although they have some health problems (Epilepsy, Legg-Calves-Perthes, and Mitral Valve Disease for example), the biggest cause of vet bills usually come from accidents. Because they are such a tiny breed, they are incredibly delicate. They can be seriously injured from being stepped on, sat on, or even from jumping out of someone’s arms. They are also at risk by being hurt by larger dogs, who can do a lot of damage with only one bite. Owning a Chihuahua means being vigilant and careful at all times, and keeping them out of dangerous situations.
