Cleft Palate in Dogs

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Canine Cleft Palate

A cleft palate is an abnormal opening in the roof of the mouth. It is the result of failure of the two sides of the palate (roof of the mouth) to come together and fuse during embryonic development. A cleft palate results in an opening between the nasal passages and the mouth.

Symptoms and Types

Symptoms expected with a cleft palate include:

  • Runny nose
  • Coughing
  • Aspiration pneumonia (pneumonia caused by milk and food contents entering the cleft and infecting the lungs)
  • Respiratory difficulty (caused by aspiration pneumonia)
  • Difficulty sucking and nursing (for puppies)
  • Slow growth
  • Weight loss
  • Lack of appetite


Cleft palate is most often a congenital disorder, likely inherited. There is a breed predilection in beagles, Cocker spaniels, dachshunds, German shepherds, Labrador retrievers, schnauzers, Shetland sheepdogs, and brachycephalic (short-nosed) breeds.

Cleft palates can also be caused by exposure of pregnant female dogs to teratogenic chemicals (chemicals which interfere with normal embryo development.) These include griseofulvicin and excessive vitamin A and vitamin D. In these cases, the puppies may be born with cleft palates.


Diagnosis is made by a visual examination of the cleft palate.

  • Aspiration pneumonia
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Something capable of producing defects in a fetus


A cavity in the mouth where the respiratory systems and gastrointestinal systems come together


The zygote that is developed after conception


An animal with a wide head, short in stature.


Something having to do with an embryo or the development of an embryo

Courtesy of Original Article