A tea cup tiny Chihuahua will need extra care and special attention especially as a puppy and should always be checked out by a licensed veterinarian for liver problems and thyroids. Because “tea cup” Chihuahuas are so small this makes them much more likely to get seriously injured. Children often like to engage in recreation or rough activities with the small dog and accidents happen more than often because of the fragileness of the Chihuahua. Chihuahua’s sometimes forget that they are small dogs and even the slightest knock can break bones or seriously injure your friend.