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Writer's pictureVetMed Team

Intestinal Blockage in Dogs: 8 Signs to Look Out For

Intestinal blockages in dogs are a significant health concern and one of the more common emergencies that veterinarians encounter. When a dog's intestine becomes obstructed, it impedes the normal movement of digestive contents. This can cause a range of complications, from mild discomfort to life-threatening conditions. Early detection and understanding the causes are paramount to ensuring the best outcomes for our canine companions.

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What is an Intestinal Blockage in Dogs?

Intestinal blockage, also known as gastrointestinal obstruction, occurs when a foreign object, tumor, or segment of the intestines impedes the flow of contents through the digestive tract. The blockage can be partial, allowing some food and fluids to pass, or complete, stopping everything in its path.

  • Partial Blockage: Blockage still allows some food and fluids to pass through.

  • Complete Blockage: Blockage stops everything from moving through the digestive tract.


When a blockage occurs, it disrupts the normal digestive process. Nutrients aren't properly absorbed, and waste products can't be efficiently excreted. The obstruction causes a buildup of gas, fluid, and food behind the point of obstruction, leading to increased pressure and distension in the intestines. This can compromise blood flow, causing tissue damage or necrosis.


The severity of the symptoms and potential complications depend on the location and duration of the blockage. A prolonged obstruction can lead to perforation of the intestines, peritonitis (inflammation of the inner lining of the abdominal cavity), or sepsis, all of which are serious, life-threatening conditions.



What Causes an Intestinal Blockage?

The causes of intestinal blockage in dogs can be broadly categorized into two groups: mechanical and functional.


Mechanical Causes:

  • Foreign Objects: This is the most common cause. Dogs, especially puppies, often ingest a variety of non-food items like toys, bones, socks, stones, or other small household items. Some of these objects might pass through the digestive system without issues, while others can become lodged in the narrow parts of the intestines.

  • Intestinal Tumors: Tumors or growths within the intestine, whether benign or malignant, can grow to a size where they obstruct the passage of digestive contents.

  • Intussusception: This is a condition where a segment of the intestine "telescopes" into an adjacent segment, causing an obstruction. It is more common in younger dogs and can be triggered by parasitic infections or other intestinal diseases.

  • Gastrointestinal Twists: Conditions such as gastric torsion or volvulus involve a twist in parts of the digestive tract, leading to an obstruction.


Functional Causes:

  • Paralytic Ileus: This is a functional obstruction where the coordinated muscle contractions of the intestines, known as peristalsis, become disrupted. As a result, the contents of the intestines cannot be propelled forward effectively. It can be a result of surgery, certain medications, or electrolyte imbalances.

  • Inflammatory Bowel Disease: Chronic inflammation of the intestinal wall can disrupt its normal function, leading to reduced motility and potential blockage.


Understanding the root cause of an intestinal blockage is crucial as it informs the treatment approach. Whether caused by foreign objects or a functional issue, swift medical intervention is necessary to prevent complications and restore the dog's health.



Can You Prevent an Intestinal Blockage?

Intestinal blockages in dogs are a concerning health issue, often requiring swift and sometimes invasive interventions. Fortunately, with careful attention and some preventative measures, the risk of your dog developing an intestinal blockage can be substantially reduced. Here are some proactive steps dog owners can take:

  • Mindful Monitoring: Regularly supervise your dog, especially during playtime. Ensure they aren't chewing or swallowing inappropriate items.

  • Toy Selection: Choose dog toys that are durable and appropriately sized for your dog. Small toys can be easily swallowed by larger breeds.

  • Limit Access to Small Objects: Keep small household items, like socks, hair ties, and children's toys, out of your dog's reach.

  • Safe Bones and Chews: Always provide bones and chews that are appropriate for your dog's size and chewing habits. Avoid cooked bones which can splinter and become lodged in the intestines.

  • Secure Trash Bins: Ensure your trash bins are secure, so your dog can't rummage through and eat discarded food or non-food items.

  • Routine Vet Check-ups: Regular veterinarian visits can help detect and address potential gastrointestinal issues before they escalate.

  • Deworming and Parasite Prevention: Regularly deworm your dog and ensure they're on a parasite prevention program, as some worms can cause blockages.

  • Dietary Consistency: Avoid sudden changes in your dog's diet, and be cautious about giving them fatty or rich foods which can cause inflammation or other gastrointestinal issues.


Prevention is the first line of defense against intestinal blockages. By being vigilant and understanding the potential hazards in your dog's environment, you can significantly minimize the risks associated with this health issue.



8 Symptoms of an Intestinal Blockage in Dogs

Blockages can arise from various causes, and the symptoms often reflect the body's struggle to process food and waste normally. While some indications might be subtle, others can be more overt and distressing.


1. Vomiting

Vomiting is one of the most common and immediate signs of an intestinal blockage. When a foreign object obstructs the intestines, it can prevent the normal flow of contents. As a result, the dog may regurgitate undigested food or even just bile. If your dog starts vomiting frequently or if the vomiting is accompanied by other symptoms on this list, it's imperative to consult a veterinarian.


2. Loss of Appetite

A dog with an intestinal blockage often loses interest in food due to the discomfort and pain. This symptom, especially when combined with others, can indicate a severe issue. A sudden change in appetite always warrants attention.


3. Abdominal Pain and Swelling

An obstructed intestine can cause significant pain. Dogs might react by whimpering, being lethargic, or showing aggression when their belly is touched. The abdomen might also appear swollen or feel hard to the touch.


4. Constipation or Difficulty Defecating

If an obstruction is preventing waste from moving through the intestines, your dog might strain while trying to defecate or may not be able to pass stool at all. Conversely, in some cases, they might have diarrhea if some liquid stool manages to pass around the blockage.


5. Frequent Drooling or Gagging

Excessive drooling or frequent attempts to gag can indicate nausea, a common symptom associated with blockages. It might appear as if your dog is trying to vomit but isn't able to.


6. Lethargy or Decreased Activity

A dog with an intestinal blockage might appear more tired than usual. They may be reluctant to play, go for walks, or engage in activities they usually enjoy. This lethargy is due to the discomfort and potential systemic effects of the blockage.


7. Dehydration

As a consequence of vomiting and potentially not drinking enough, a dog with an intestinal obstruction can become dehydrated. Symptoms of dehydration include dry gums, sunken eyes, and increased skin tenting (when the skin is pinched, it doesn't fall back to its normal position quickly).


8. Changes in Behavior

Dogs in pain or discomfort might display behavioral changes. They may seek solitude, appear more aggressive, or might constantly lick or chew at their abdominal area.


It's essential to recognize these symptoms early on, as an untreated intestinal blockage can lead to life-threatening complications. If a dog exhibits one or more of these signs, especially if they persist or worsen, seeking veterinary attention is crucial.



How Intestinal Blockages Are Diagnosed in Dogs

The diagnosis process combines clinical evaluation with modern diagnostic tools, allowing veterinarians to pinpoint the location and nature of the obstruction accurately.


1. Physical Examination

This is the initial step in the diagnostic process. The veterinarian will palpate (feel) the dog's abdomen to check for any signs of pain, swelling, or hard masses. While some blockages might be palpable, others might not be detectable through this method alone. The vet will also gather a thorough history, including any possibility of the dog ingesting foreign objects.


2. X-rays (Radiographs)

Radiographs are one of the primary tools veterinarians use to visualize blockages within the intestines. An X-ray can show the presence of a foreign object, as well as any buildup of gas or fluid behind the blockage, which can give the appearance of a 'gas shadow'. Multiple radiographic views might be taken to ensure a comprehensive assessment.


3. Ultrasound

Description: An ultrasound uses sound waves to produce a real-time image of the dog's internal organs. It can be particularly useful in visualizing soft-tissue obstructions that might not appear on an X-ray, such as tumors or intussusception (when one segment of intestine "telescopes" into another segment).


4. Blood Tests

While blood tests won't directly visualize a blockage, they can provide insight into the dog's overall health and the blockage's potential effects. For instance, a complete blood count (CBC) and chemistry panel can help identify signs of infection, inflammation, dehydration, or organ dysfunction, all of which could be secondary effects of an obstruction.


5. Barium Study

In a barium study, the dog is given barium, a contrast material, either orally or through an enema. Subsequent X-rays are then taken at various intervals to track the barium's progress through the gastrointestinal tract. If there's a blockage, the barium will be halted or slowed at the site of obstruction, making it more visible on the radiograph.


6. GI Endoscopy

A GI endoscopy involves inserting a flexible tube with a camera at its tip (endoscope) into the dog's gastrointestinal tract. This technique allows for direct visualization of the intestines and can sometimes be used to remove certain types of obstructions without the need for surgery.


7. Exploratory Surgery

In some cases, if the obstruction cannot be precisely identified or if it's believed that the blockage poses an immediate threat, the veterinarian might recommend exploratory surgery. This procedure not only helps diagnose the issue but can also be used to resolve the blockage once identified. This would be a last-case scenario.


Depending on the symptoms and the suspected cause, a veterinarian might use one or a combination of these diagnostic techniques to ensure the best possible outcome for the dog.



Treatment Options For an Intestinal Blockage in Dogs

Intestinal blockages in dogs require prompt medical attention. The chosen treatment often depends on the severity of the blockage, its location, and the dog's overall health.


1. Observation and Supportive Care

In cases of a mild blockage or when the veterinarian suspects that the object might pass on its own, a watch-and-wait approach may be recommended. During this time, the dog is provided with supportive care, which can include fluids to prevent dehydration, pain relief, and periodic x-rays to monitor the blockage's movement.


2. GI Endoscopy

A GI endoscopy is a minimally invasive procedure where a long, flexible tube with a camera (endoscope) is inserted into the dog's gastrointestinal tract. This allows the veterinarian to visualize the blockage and, in some cases, retrieve the object without the need for surgery.


3. Gastric Polypectomy

Gastric polyps (benign growth) are masses that have formed on the lining of the stomach. Sometimes the polyp is a source of a blockage. We use an endoscope (small diameter tube attached to a camera) to view the inside of the stomach and remove the polyp using a polypectomy snare. The wire loop is placed around the polyp and with electrocautery, the polyp is excised and cauterized.


4. Abdominal Surgery

In severe cases, or when the blockage poses significant risks to the dog's health, surgical intervention becomes necessary. The vet will make an incision into the abdomen to access the intestines and carefully remove the obstruction. After removal, the intestines are checked for damage, and any necessary repairs are made.


5. Intravenous (IV) Fluids

Regardless of the treatment method chosen, IV fluids are often administered to keep the dog hydrated and help stabilize its electrolyte levels. This supports the overall health of the dog, ensuring a smoother recovery process.


Each treatment approach has its own benefits and challenges. The veterinarian will decide on the most suitable method after considering various factors like the nature of the blockage, the dog's health, age, and the potential risks associated with each procedure.



Recovery and Management For an Intestinal Blockage in Dogs

Once your dog has been diagnosed and treated for an intestinal blockage, the road to full recovery begins. While many dogs bounce back quickly after treatment, the initial days post-procedure are critical, and proper care can ensure a smooth recovery without complications.


Post-Surgery Care

If surgery was needed to remove the obstruction, post-operative care is crucial. The surgical site should be kept clean and dry, and any signs of infection or unusual discharge should be reported to the veterinarian immediately. Restrict your dog's activity level as advised by the veterinarian, typically ensuring minimal jumping or strenuous activity for several days to weeks.


Dietary Adjustments

Initially, your dog may be put on a bland or liquid diet to ease the transition back to regular food and to ensure the digestive tract heals properly. Gradually reintroduce their regular food over several days, monitoring for any signs of discomfort or digestive upset.


Regular Monitoring

Observe your dog closely for the first few days after treatment. Ensure they are passing stools normally and are not displaying any signs of pain, discomfort, or unusual behavior.


Medication

Your vet might prescribe pain relievers, antibiotics, or other medications to manage pain, prevent infection, or address other post-treatment needs. Always administer the full course of medication as prescribed.


Follow-up Visits

Scheduled check-ups with the veterinarian after treatment are vital. This allows the vet to monitor the healing process, ensure there are no post-operative complications, and confirm that the blockage has been entirely resolved.


Preventative Measures

Once your dog has experienced an intestinal blockage, it's important to put measures in place to prevent a recurrence. This includes being vigilant about what they have access to, ensuring they're not eating non-food items, and regularly checking toys for wear and tear.


Overall, while an intestinal blockage is a serious condition, with timely treatment and proper post-treatment care, most dogs make a full recovery.



VetMed Treats Intestinal Blockages in Dogs

At VetMed, we recognize the alarming nature of intestinal blockages in dogs and are dedicated to offering cutting-edge, compassionate care for our furry patients. Combining state-of-the-art diagnostic tools with a team of experienced veterinary professionals, we ensure that every case is approached with precision, urgency, and a deep understanding of each individual pet's needs.



 

Questions You've Asked Us About Intestinal Blockages in Dogs

Still have questions? Contact us here - we promise we'll answer them.

How do I know if my dog has a blockage in his intestines?

If your dog has an intestinal blockage, they might exhibit symptoms such as vomiting, loss of appetite, abdominal pain, and lethargy. Regular monitoring and consulting a veterinarian if unusual behaviors persist is crucial.

Will a dog still poop if they have a blockage?

How do you clear a dog's bowel blockage?

How do I know if my dog has something stuck in his stomach?

How will my dog act if they have a blockage?



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