To rescue or adopt a standard Chihuahua near you, use the websites Petfinder or Adopt a Pet. The phrase "teacup Chihuahua" generally refers to a very small Chihuahua, but teacup Chihuahuas are not officially recognized as a breed. Most teacup puppies are the product of irresponsible breeding practices, including inbreeding runt standard Chihuahuas and attempting to stunt the puppies' growth through starvation or early weaning.
No matter how tiny and adorable so-called teacup puppies may be, they are commonly riddled with health problems, such as hypoglycemia (which can lead to seizures), chronic indigestion, hydrocephalus and respiratory problems. These dogs are also extremely fragile because of their small bones; simply jumping from a couch can cause serious injury.
Teacup dogs are not the only option for someone who wants a pint-sized pooch. Healthy standard Chihuahuas typically weigh no more than 6 pounds, and many end up in shelters and rescues due to the popularity of the breed and lack of education about spaying and neutering; rescuing one of these dogs both saves a life and creates room for more lives to be saved.
If you decide to go with a breeder to find a small standard Chihuahua, use a breeder within traveling distance. Before purchasing a puppy, you should meet the breeder, interact with the puppy's parents, and see the living conditions in which the breeder raises the litters.