Molera/Open Fontanelle

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Historically, the Chihuahua developed in Mexico and the United States has displayed a “soft spot” on the top of the head. In the Chihuahua this spot, or fontanel, is known as a MOLERA; and is the same as that found in human babies. In the past, this molera was accepted as a mark of purity in the breed, and it is still mentioned in most Chihuahua breed standards the world over. It is important to note that while many Chihuahua puppies are born without the molera, there are probably just as many born with one and its presence is nothing to become alarmed over. Unfortunately, many  people and some veterinarians are not familiar with the Chihuahua and have tried to link the presence of a molera with the condition known as hydrocephalus. This has caused many newcomers to the breed serious concern and undue worry. The truth is that a domed head with a molera present does not predispose the Chihuahua to this condition.  For more information, see the Molera Statement at the Chihuahua Club of America’s  website: https://chihuahuaclubofamerica.org/chihuahua-breed-standard/molera-statement/