강아지 담낭염·담낭 질환 자주 묻는 질문 Q&A — 보호자가 꼭 알아야 할 핵심

What is canine cholecystitis? — Causes of abdominal pain and jaundice, and when to visit the vet

Liver HealthQ&AMeongsiljang Veterinary Advisory Board

Cholecystitis in dogs is a condition where bile flow is obstructed or inflammation occurs, making early detection crucial. We’ve compiled the essential information every pet owner should know in a Q&A format.

Canine cholecystitis is a condition where the normal flow of bile is obstructed

Abdominal ultrasound images for diagnosing cholecystitis in dogs

Cholecystitis is an inflammation of the gallbladder, often associated with gallstones or bacterial infections. When bile flow is obstructed and bile stagnates, it can lead to bile stasis, potentially causing damage to liver cells. This condition is more commonly reported in small-breed dogs. Because clinical signs are often nonspecific, diagnostic tools such as blood tests and abdominal ultrasound are crucial for identifying gallbladder disease. Regular veterinary check-ups are helpful for monitoring gallbladder health. If you notice symptoms like fever, jaundice, or vomiting, prompt consultation with your veterinarian is essential.

The main causes of cholecystitis include gallstones, inflammation, and blood flow disorders

Canine cholecystitis often develops when inflammation of the gallbladder is triggered by gallstones or bacterial infections. If gallstones obstruct the bile ducts, the flow of bile is blocked, leading to clinical signs. Cystic mucosal hyperplasia (thickening of the mucosa) can act as a contributing factor or occur as a secondary consequence. Gallbladder rupture or obstruction of the common bile duct by stones may result in jaundice. Blood tests and abdominal ultrasound allow veterinarians to identify the underlying cause and assess the condition of the gallbladder. A clear diagnosis from your veterinarian makes it easier to develop an effective treatment plan, as accurately identifying the root cause is essential for appropriate therapy and ongoing care.

An anatomical illustration showing gallstones and inflammation, which are causes of cholecystitis in dogs.

Four representative symptoms of cholecystitis

Vomiting and Appetite Changes: Your pet may experience fluctuating appetite, reduced interest in food, or vomiting. As food intake decreases, weight loss may also occur.

Abdominal Discomfort: Your pet may show signs of discomfort or curl up when their abdomen is touched. The more severe the pain, the less they may move.

Fever: Inflammation of the gallbladder can sometimes be accompanied by a fever. Your pet may appear lethargic and weak.

Jaundice: The whites of the eyes, gums, or skin may turn yellow. This happens when bilirubin, a bile pigment, builds up in the blood, causing the mucous membranes and skin to take on a yellowish tint.

A puppy showing signs of abdominal pain due to cholecystitis

If jaundice occurs or there is persistent vomiting, immediate veterinary visit is required

Jaundice can be an important sign of bile flow problems or bile duct obstruction. Prolonged vomiting can lead to dehydration. If the gallbladder ruptures or gallstones block the common bile duct, the condition can worsen rapidly along with jaundice. If you notice these signs, don’t ignore them—consult your veterinarian immediately.

Diagnosis is accurately confirmed through ultrasound and blood tests

Cholecystitis often presents with nonspecific clinical signs, so we typically confirm the diagnosis by combining clinical pathology tests with abdominal ultrasound. - Abdominal Ultrasound: This allows us to examine the gallbladder wall for defects, assess reactions in the surrounding tissues, and check for echogenic bile or gallstones within the gallbladder. It is also crucial for identifying signs that may suggest gallbladder rupture. - Blood Tests: A marked elevation in bile stasis marker enzymes (ALP and GGT) compared to hepatocellular enzymes (ALT and AST), along with increased total bilirubin and cholesterol, may indicate impaired bile flow. - Additional Tests: If necessary, we may perform bile aspiration (cholecystocentesis) or tissue evaluation to confirm the presence of infection or inflammation. We interpret the results of these various tests comprehensively to determine if the gallbladder is the source of the disease.

An abdominal ultrasound examination to diagnose cholecystitis in a dog

Treatment progresses step-by-step with medication, dietary management, and surgery

- Antibiotic therapy: Cholecystitis is often associated with bacterial infection, making antibiotic treatment essential. Treatment typically lasts at least 4 to 6 weeks, and whenever possible, antibiotics are selected based on culture test results. - Supportive care: We provide supportive management to stabilize the patient, including correcting dehydration and controlling vomiting. - Surgical treatment: Cholecystectomy may be necessary if the gallbladder has ruptured or if gallstones are obstructing the common bile duct. Surgery may also be required for conditions such as gallbladder mucoceles. The treatment plan is tailored to each patient’s condition, and early diagnosis and treatment aid recovery.

A puppy recovering after gallbladder removal surgery

Key to home care is dietary management and regular check-ups

- Regular check-ups: Work with your veterinarian to periodically monitor your pet’s gallbladder through blood tests and ultrasound. - Prescribed dietary management: For safety, follow your veterinarian’s dietary recommendations rather than making independent decisions about your pet’s diet. - Ensure adequate hydration: Always provide fresh, clean water to prevent dehydration. - Maintain medication regimen: Complete the full prescribed course of medications, such as antibiotics, for the entire duration specified by your veterinarian. - Monitor your pet’s condition: Contact your clinic immediately if you notice any changes such as fever, jaundice, vomiting, or lethargy. Consistent care and observation help prevent recurrence and worsening of the condition.

A scene showing the provision of low-fat food and water for managing canine cholecystitis.

Continuing obesity or a high-fat diet increases the risk of recurrence

Dogs with a history of cholecystitis are at risk of recurrence or complications, so consistent care is essential. Please watch closely for the return of symptoms such as fever, jaundice, or changes in appetite. Follow your veterinarian’s instructions for prescribed diets and medications, and schedule regular check-ups to monitor gallbladder health—these steps help prevent recurrence and worsening of the condition.

Reviewed by a veterinarian

Dr. Tony — Punnawat Phongkittirak

Veterinarian

A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.

Frequently Asked Questions

Can a dog’s cholecystitis be treated?

With early diagnosis and appropriate treatment, a good recovery can be expected. In cases involving bacterial infection, antibiotic therapy is typically continued for at least 4 to 6 weeks, and in severe cases such as gallbladder rupture or common bile duct obstruction, a cholecystectomy may be necessary.

How should I manage my pet’s diet if they have cholecystitis?

It’s safer to adjust your pet’s diet based on your veterinarian’s recommendations rather than making changes on your own. Stick to the prescribed medications and diet as directed, and schedule regular check-ups to monitor their condition.

Can cholecystitis recur?

Dogs that have previously had cholecystitis may be at risk for recurrence or complications. Following regular check-ups and your veterinarian’s care guidelines can help prevent recurrence and worsening of the condition.

Which dogs are more commonly affected by cholecystitis?

Cholecystitis is more commonly reported in small-breed dogs. It often occurs in association with gallstones, bacterial infections, or cystic mucosal hyperplasia.

Is an ultrasound alone sufficient for diagnosing cholecystitis?

Cholecystitis often presents with nonspecific symptoms, so diagnosis is made by combining abdominal ultrasound with clinical pathology tests such as blood work. If needed, bile aspiration or additional tests may also be performed.

Comparison of management strategies for each stage of cholecystitis treatment

Item	Main Symptoms	Main Treatment Methods	Prognosis
Mild	Appetite changes, mild vomiting	Antibiotic therapy, supportive care	Good with management
Moderate	Persistent vomiting, abdominal discomfort, jaundice	Antibiotics + supportive care + regular check-ups	Fair
Severe	Fever, abdominal pain, jaundice, suspected gallbladder rupture	Cholecystectomy, inpatient care	Recovery expected if surgery is successful

Treatment and prognosis vary greatly depending on the timing of diagnosis and the condition, such as whether the gallbladder has ruptured or become obstructed.

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References

[1] Plumb's Veterinary Drug Handbook, 9th Edition, 2022

[2] Clinical Medicine of the Dog and Cat, 4th Edition, 2021

[3] Small Animal Critical Care Medicine, 3rd Edition, 2019