Contrary to popular belief, the longhaired breed also typically sheds less than its shorthaired counterparts. Up to three or more years may be needed before a full longhaired coat develops. Up to three or more years may be needed before a full longhaired coat develops. The Fédération Cynologique Internationale  standard calls for dogs ideally between 1.5 and 3.0 kg (3.3 and 6.6 lb), although smaller ones are acceptable in the show ring.Pet Chihuahuas (that is, those bred or purchased as companions rather than show dogs) often range above these weights, even above 10 lb if they have large bone structures or are allowed to become overweight. The lifespan for a Chihuahua is usually between 12 and 20 years.Chihuahuas are also known for luxating patella, a genetic condition that can occur in all dogs. The lifespan for a Chihuahua is usually between 12 and 20 years.Chihuahuas are also known for luxating patella, a genetic condition that can occur in all dogs.
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