What are the common causes of gastroesophageal reflux in dogs and cats?

Common causes include acid reflux, delayed gastric emptying, lower esophageal sphincter dysfunction, and gastroenteritis. A veterinary examination is needed to identify the specific cause and recommend appropriate management.

How will a vet diagnose gastroesophageal reflux?

Diagnosis is based on medical history and physical examination. Blood tests, X-rays, endoscopy, or advanced imaging may be added as needed to rule out other conditions and confirm the extent of disease.

What home care can help my pet?

Feed small, frequent meals of easily digestible food, elevate the food bowl during feeding, and keep a record of any symptoms. Bring notes or videos to your vet appointment for discussion if symptoms continue.

How long does it take to see improvement?

Recovery time varies depending on the cause. Mild cases may improve within days to weeks. If symptoms persist or recur, a follow-up visit is recommended for further evaluation and monitoring.

How much do the tests and treatment usually cost?

Costs vary by clinic and region — ask your vet for an estimate before proceeding.

Disease Guide

Gastroesophageal Reflux in Dogs & Cats: Vomiting, Appetite Changes & Care Guide [2025]

Gastroesophageal reflux occurs when stomach acid flows back into the esophagus, causing mucosal damage. Symptoms include regurgitation, difficulty swallowing, and drooling. Treatment involves small frequent meals, antacids, and prokinetic medications.

Take 1 minute to check the symptoms first

Last updated: 2026/01/05

Pethealthmap editorial team

Sources: ACVIM, WSAVA, National Taiwan University Veterinary Hospital

When to See a Vet

Seek immediate veterinary care (emergency)

•Persistent, frequent vomiting for several hours or more that will not stop
•Vomiting fresh blood or black material multiple times
•Obvious difficulty swallowing or rapid, obstructed breathing

Schedule a veterinary visit soon (within 24-72 hours)

•Appetite is clearly reduced, but the pet is still eating small amounts
•Obvious pain or resistance while eating
•Occasional vomiting or reflux of stomach fluid, but energy level is still acceptable

01What symptoms indicate something is wrong?

Common external symptoms and behavioral changes seen with gastroesophageal reflux, which may affect eating and overall well-being.

Reduced appetite or refusal to eat, with a significant drop in food intake
Signs of pain, reluctance, or sudden stopping while eating
Vomiting or regurgitation of stomach fluid or food
Drooling, frequent swallowing, or repeated throat-clearing
If symptoms persist or worsen, schedule a veterinary appointment for further evaluation

Seek emergency care immediately if you notice the following symptoms:

⚠️ Continuous vomiting lasting several hours with no sign of stopping
⚠️ Multiple episodes of vomiting fresh blood or dark/black material
⚠️ Obvious difficulty swallowing or rapid, labored breathing

02How can you assess the situation at home? Key monitoring points and emergency warning signs

Observing and recording details at home helps your vet quickly assess the condition and plan appropriate diagnostics.

Log daily food intake, any refusal to eat, and changes in appetite
Take photos or short videos of vomiting or regurgitation episodes as documentation
Note stool color, frequency, and any unusual odor each day
Weigh your pet daily and record changes to track nutritional status
Watch for changes in alertness, activity level, or unusual lethargy or quietness
If symptoms persist or worsen, seek a clinic with diagnostic imaging capabilities

03How will the vet make a diagnosis? Common diagnostic tests

At the clinic, the vet will start with a physical examination and combine blood work and imaging studies to identify the cause and assess severity.

Physical examination

abdominal palpation and assessment of the throat and swallowing function

Blood and biochemistry panel

evaluate liver and kidney function and overall metabolic status

Urinalysis

help rule out metabolic or infectious causes

X-rays

assess structural changes or obstructions in the esophagus and stomach

Advanced imaging (CT/endoscopy)

used for complex cases or when visual confirmation is needed

Consider seeking a specialist or referral hospital equipped with imaging

04How is the condition treated and managed after diagnosis? Medications, dietary changes, and care guide

Treatment focuses on reducing acid irritation, protecting the esophageal lining, dietary adjustments, and regular follow-up — with further imaging or specialist referral if needed.

Medications to reduce stomach acid and protect the esophageal lining
Dietary adjustment: choose easily digestible food and feed small, frequent meals
Home care: elevate the food bowl at mealtimes and supervise eating to prevent aspiration
Follow up regularly as directed by your vet to monitor symptoms and check relevant blood values
Arrange follow-up imaging or endoscopy as needed to assess mucosal healing
If symptoms do not improve with treatment, consider referral to a gastrointestinal specialist

05What should you prepare before seeing the vet? Key information to help your vet assess the problem quickly

Prepare photos or short videos of vomit and stool for the vet's reference

Record when symptoms started, how often they occur, and how they have changed over time

List the types of kibble, wet food, and treats your pet has been eating recently

Describe your pet's current alertness, water intake, and whether urination and defecation are normal

Bring recent blood work or imaging reports and a list of any medications currently being used

Use a secure carrier for transport and book an appointment in advance to reduce wait times

This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.