TL;DR: Difficulty swallowing water (dysphagia) is a high-urgency situation that puts your dog at risk for life-threatening aspiration pneumonia and rapid dehydration. Contact an emergency veterinarian immediately if your dog gags, coughs while drinking, or cannot lap up water.
What is difficulty swallowing (dysphagia) in dogs?
Dysphagia is the medical term used when a dog has trouble moving food or liquid from their mouth into their stomach. When a dog specifically struggles with water, it often indicates a disruption in the complex coordination of the tongue, throat muscles, or the esophagus. This can be caused by neurological issues, foreign objects lodged in the throat, inflammation, or structural abnormalities.
Is it an emergency if my dog is having trouble swallowing water?
- Difficulty swallowing water is considered a High Urgency situation due to the immediate risk of aspiration.
- Aspiration pneumonia can occur very quickly if water is accidentally inhaled into the lungs instead of being swallowed.
- Dogs that cannot hydrate themselves will rapidly become dehydrated.
- You should contact an emergency veterinarian immediately if your dog is gagging, coughing while drinking, or seems unable to lap up water.
How can a photo or video help the vet triage my dog's swallowing issue?
- A video showing the physical movement of your dog's head, neck, and tongue helps the veterinary team distinguish between oral, pharyngeal, or esophageal disorders.
- If it is safe to do so, a short clip of your dog attempting to drink can help the vet differentiate between a physical blockage and a neurological coordination issue.
- Providing this visual evidence allows for a faster diagnosis and a more targeted treatment plan upon your arrival at the clinic.
Clinical Context (Merck Veterinary Manual)
Difficulty swallowing liquids in dogs can stem from various causes including pharyngeal paralysis, foreign bodies, neoplasms, injuries, infectious diseases such as rabies or distemper, neurological disorders, reluctance to swallow due to esophageal irritation or obstruction, sublingual lesions, tonsillitis, conformational defects, metabolic disorders like hepatic encephalopathy or uremia, and salivary gland issues. Diagnostic evaluation includes a thorough history, clinical signs assessment, baseline CBC and biochemistry profile to assess for hemoconcentration, electrolyte imbalances, acid-base disturbances, and prerenal azotemia. Advanced imaging such as skull and thoracic radiographs, endoscopy, ultrasonography, CT, or MRI may be needed to determine the underlying cause. Animals suspected of having rabies should be handled with appropriate precautions. Treatment varies based on the underlying cause. In cases of dyspnea, emergency tracheostomy may be required. Cricopharyngeal achalasia, characterized by inadequate relaxation of the cricopharyngeal muscle, can also lead to an inability to swallow liquids.
Chapter: Neurology, Emergency
Source: The Merck Veterinary Manual, 11th Edition (Page 186)