Chihuahuas are a toy sized dog. The body is longer than it is tall. The head is round with an apple shape. The muzzle is short and pointed with a well defined stop. Chihuahua puppies have a soft spot on the top of their head called a molera. This usually closes by adulthood, but in special cases can become a problem. They have large, round eyes that are set well apart on their head. They are normally dark, ruby, and may be lighter in white dogs. They also have large, erect ears. Dewclaws may or may not be removed. The tail is typically long, sickle-shaped, either curled over the back or to the side. Chihuahua coats can be either long or short haired. They come in all colors, marked or splashed are accepted.Health Problems
Chihuahua are prone to rheumatism, slipped stifle, colds, and gum problems. They can also have corneal dryness and secondary glaucoma because of their protruding eyes. It is important to keep their eyes clean to help with these problems. They can gain weight easily, so their diet is important. Because they are so small it is important to take caution with chocolate, fertilizer, or other potential poisons. They are a small dog and it does not take much to poison them. Cesarean sections are common because of the large nature of the puppies heads. They are susceptible to fractrued bones and other accidents because of their frail nature. Chihuahuas have a molera, which in some cases can remain open throughout life. This will make the dog more prone to injury. They have a tendency to wheeze or snore because of their short muzzle.Other Facts
1. Chihuahuas are usually 6-9 inches in height, and generally weigh 2-6 pounds.