The standard size of the smallest teacup dog is under 7 inches or 17.8 centimeters and weighs no more than 3 pounds or 2.7 pounds. It is often said that the teacup dog does not grow, not that the teacup dog is born that way, in fact the teacup dog also undergoes the general animal growth process, from puppies to adult dogs and then become older dogs, puppies when the size is the smallest, adult teacup dog body size development is the best, and then will grow older as the body shrinks. Teacups are smaller because of genetic restrictions Teacups are subject to genetic restrictions, even adult dogs are smaller than the average pet dog puppy seen by humans, a teacup is big enough to fit, so it gives everyone the illusion that teacups do not grow. Teacup dogs are smaller because of drug injections teacup dogs are rare, difficult to breed, require artificial assistance, and the number of each litter is rare, roughly around 2, and therefore more expensive. In order to make higher profits, unscrupulous traders will give some dogs a teacup injection to limit the growth of the dog, thus posing as a teacup dog to sell at a high price.
