Proventricular dilatation disease (PDD) in birds

2 min read

Proventricular dilatation disease (PDD) in birds - Vetster

Proventricular Dilatation Disease (PDD) is an incurable disease that affects the gastrointestinal and neurological systems of a variety of bird species. Proventricular Dilatation Disease (PDD) was originally called “Macaw Wasting Disease” and was first recognized and described in 1978. Avian bornavirus is responsible for this disease and all ages birds can be infected. It is possible that a bird can be infected with bornavirus but not develop symptoms of Proventricular Dilatation Disease (PDD), this type of infection would be considered an asymptomatic infection.

Symptoms of Proventricular Dilatation Disease (PDD) in Birds

There are no specific symptoms. PPD primarily attacks the digestive system and the nervous system. The following symptoms may similar are common, and can be similar to symptoms present in birds with other diseases.

  • Lack of appetite
  • Weight loss
  • Seizures
  • Partial paralysis
  • Weakness
  • Undigested seed in stool
  • Vomiting

Treatment and Prevention

Unfortunately, there is no effective or specific treatment. Anti-inflammatory medications including steroids, may be used to reduce inflammation of GI tract and nerves but the disease is ultimately fatal. There is no vaccine to available to prevent avian bornavirus infection. The best prevention is to isolate infected birds from healthy birds.

Concerned about the symptoms of Proventricular Dilation Disease in your bird? Schedule an appointment with one of our veterinary professionals today at for advice and to learn more about your pet’s wellness.

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