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  • Writer's pictureVetMed Team

Rectal Polyps in Dogs: Should You Be Worried?

Rectal polyps, while relatively rare, can be alarming when first detected, but with early diagnosis and appropriate treatment, many dogs continue to lead healthy and comfortable lives. This article dives deep into understanding rectal polyps in dogs, from their causes and symptoms to the latest in diagnostic techniques and treatment options. By staying informed, pet owners can ensure they're providing the best possible care for their furry family members.

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What Are Rectal Polyps in Dogs?

Most rectal polyps are benign, non-cancerous growths that arise from the lining of the rectum. They protrude into the rectal canal and can vary in size from small nodules to larger, more prominent masses. While these growths are typically benign, their presence can cause discomfort, bleeding, and other complications for the dog and some can turn cancerous, although very few.

The anatomy of a rectal polyp involves a stalk, which is its attachment to the rectal lining, and a head, which is the visible and often palpable part of the polyp. The texture can be smooth or irregular, and in some instances, due to inflammation or secondary infections, the surface might appear red or ulcerated.

It's crucial to differentiate between rectal polyps and other types of growths or tumors. While rectal polyps are benign, other growths like adenomas or adenocarcinomas can be malignant. Proper diagnosis is essential to ensure the right treatment and prognosis.

What Causes Rectal Polyps?

The exact cause of rectal polyps in dogs remains a topic of ongoing research. However, several potential factors and conditions have been identified that might contribute to their development:

  • Chronic Inflammation: Chronic inflammation of the rectal lining can lead to changes in the cellular structure, predisposing the formation of polyps. Conditions causing persistent inflammation, such as colitis or other inflammatory bowel diseases, may be contributing factors.

  • Genetic Predisposition: Some breeds may be genetically predisposed to developing rectal polyps. While it can occur in any dog, certain breeds might be more susceptible due to their genetic makeup.

  • Age: Older dogs appear to be at a higher risk of developing rectal polyps. The wear and tear on the body and the age-related changes in cellular structures might increase the likelihood of polyp formation.

  • Dietary Factors: Though not definitively proven, there's some belief in the veterinary community that a dog's diet, especially one low in fiber or high in fat, could play a role in polyp development.

  • Hormonal Imbalances: Some studies suggest that imbalances in certain hormones can cause abnormal growth in various tissues, potentially leading to polyp formation.

  • Foreign Bodies or Trauma: Any foreign body or trauma to the rectal area can cause inflammation and subsequent changes to the tissue, potentially leading to the development of polyps over time.

It's essential to understand that while these factors may increase the risk, they do not guarantee that a dog will develop rectal polyps. Many dogs with one or more risk factors never form polyps, while others with no apparent risk can develop them. Regular check-ups and being vigilant about any changes in your dog's defecation habits can aid in early detection and treatment.

Can You Prevent Rectal Polyps?

The development of rectal polyps in dogs is influenced by a combination of genetic, environmental, and physiological factors. While it's challenging to prevent them entirely due to the multifactorial nature of their occurrence, there are steps dog owners can take to potentially reduce the risk or detect them early.

  • Regular Veterinary Check-ups: Routine veterinary examinations, especially for middle-aged and older dogs, can help in the early detection of any abnormalities, including rectal polyps. Early diagnosis can lead to prompt treatment and a better prognosis.

  • Balanced Diet: Ensure your dog has a balanced, fiber-rich diet. Foods high in fiber can promote healthy bowel movements and potentially reduce the risk of polyp development.

  • Limit Rectal Trauma: Avoid situations where your dog could suffer trauma to the rectal area, such as encounters with aggressive animals or hazardous environments.

  • Monitor for Foreign Bodies: Be cautious of what your dog is ingesting, especially during walks or playtime. Swallowed foreign bodies can lead to internal trauma or inflammation.

  • Promptly Address Diarrhea and Constipation: Chronic diarrhea or constipation can lead to persistent inflammation of the rectal lining. Seek veterinary care if your dog experiences prolonged bowel movement issues.

  • Limit Exposure to Carcinogens: While the direct link between carcinogens and rectal polyps is not well-established, reducing exposure to known carcinogenic substances might decrease the risk of various diseases.

  • Consider Genetic Testing: For breeds predisposed to rectal polyps or other growths, genetic testing can provide insights into your dog's genetic health, helping you take preventive measures.

While these steps can aid in prevention or early detection, it's crucial to understand that they do not guarantee a dog will not develop rectal polyps. However, proactive measures and awareness can significantly impact the overall health and well-being of your canine companion.

What Are the Symptoms of Rectal Polyps in Dogs?

Rectal polyps are benign growths that arise from the lining of the rectum, and while they might start as asymptomatic, they can eventually manifest in various ways depending on their size, number, and location. The clinical presentation of rectal polyps varies from one dog to another, but some common signs and symptoms are indicative of their presence. Noticing these signs early can lead to prompt veterinary care and a more effective treatment.

1. Rectal Bleeding

One of the most noticeable symptoms of rectal polyps is the presence of fresh blood on the feces or around the anus. The blood is typically bright red and might be observed after the dog defecates. Rectal polyps are the most common cause of blood on the stool.

2. Straining to Defecate

As the polyp grows, it can obstruct the passage of feces. Dogs might strain when trying to pass stools, leading to discomfort.

3. Mucoid Discharge

Apart from blood, you might also notice a slimy, mucoid discharge around the anus or on the feces. This discharge is a result of the inflammation and irritation caused by the polyp.

4. Visible Polyp or Mass

In cases where the polyp grows towards the outside, you might be able to observe a fleshy mass protruding from the rectal opening, especially when the dog strains.

5. Licking or Scratching the Area

Due to the discomfort or itchiness caused by the polyp, dogs might frequently lick or scratch around the anus.

6. Altered Bowel Habits

A dog with a rectal polyp might have changes in its bowel habits. This could manifest as diarrhea, constipation, or alternating between both.

7. Pain or Discomfort

While some dogs might not show any signs of pain, others can be visibly uncomfortable, especially during defecation. They might whimper or show signs of distress.

8. Unpleasant Odor

Some rectal polyps can produce a foul-smelling discharge, leading to an unpleasant odor around the dog's rear end.

While the presence of one or more of these symptoms could suggest a rectal polyp, it's essential to consult with a veterinarian for a definitive diagnosis. Other rectal and intestinal conditions can present similarly, so professional evaluation is crucial for accurate identification and appropriate treatment.

How Rectal Polyps Are Diagnosed in Dogs

Recognizing rectal polyps in their early stages can make a significant difference in treatment outcomes for dogs. When presented with the potential symptoms of rectal polyps, veterinarians have a range of diagnostic tools at their disposal to ascertain the presence, location, and nature of these growths. A thorough diagnosis helps to differentiate rectal polyps from other rectal or intestinal conditions that may present similarly.

Physical Examination

A veterinarian's initial approach often begins with a comprehensive physical examination. By gently palpating the abdominal and rectal area, the veterinarian may feel the presence of larger polyps. Visual inspection can also reveal polyps that are protruding externally.


An endoscope is a flexible tube with a light and camera at its tip. It can be inserted into the rectum to visualize the inner lining, allowing the veterinarian to see any polyps present. This procedure, called a colonoscopy when examining the colon, offers a clear view of the rectum and can even allow for biopsy samples to be taken if needed.


If a growth is discovered, a biopsy can be crucial for determining whether it's benign (a polyp) or malignant (cancer). A tissue sample is taken from the growth and sent to a pathology laboratory for microscopic examination.

Radiography (X-rays)

While X-rays might not directly visualize polyps, they can show signs of obstructions or changes in the intestinal and rectal regions. This method can be especially useful if there's suspicion of a tumor that extends beyond the rectal lining.


Ultrasound uses sound waves to create images of the internal structures. An abdominal ultrasound can provide images of the rectum and surrounding areas, highlighting any abnormal growths or obstructions.

Blood Tests

While blood tests won't diagnose rectal polyps directly, they can give insights into the dog's overall health and reveal any signs of inflammation or other issues associated with polyps.

Each diagnostic method offers unique insights and might be employed based on the presenting symptoms, the dog's health status, and the veterinarian's initial findings. An accurate diagnosis is pivotal to guide treatment and management decisions effectively.

Treatment Options For Rectal Polyps in Dogs

Rectal polyps, though alarming, are often benign growths that can be effectively managed or even completely resolved through appropriate treatment. The type of treatment administered largely depends on the size, location, and number of polyps, as well as the overall health of the dog. Veterinarians typically consider the least invasive options first, but in some cases, more direct interventions might be necessary to ensure the health and comfort of the canine patient.


Some small, non-obstructive polyps that aren't causing any discomfort or clinical symptoms to the dog might just be monitored. Regular check-ups will be scheduled to track the size and number of the polyps to ensure they don't grow or multiply in a way that could cause complications.

Rectal Polypectomy

This is a minimally invasive procedure used to remove the polyp using a flexible endoscopy and a polypectomy snare. The snare encircles the polyp and with electrocautery, the polyp is excised and cauterized.

Surgical Excision

In cases where polyps are large, numerous, or deeply embedded, surgical removal might be necessary. This procedure, while more invasive, ensures that the entire polyp, including its base, is removed, reducing the chances of recurrence.


Cryotherapy involves using extreme cold to freeze and destroy the polyps. It's a less invasive alternative to surgical removal, suitable for certain types of polyps and when they're in locations that are accessible to the cryotherapy equipment.

In all cases, early detection and prompt treatment are paramount. This not only ensures the best outcome for the dog but also minimizes the risk of potential complications associated with untreated rectal polyps.

Recovery and Management For Rectal Polyps in Dogs

The recovery and long-term management of dogs diagnosed with rectal polyps largely depend on the treatment method utilized and the individual dog's overall health. However, with proper care and attention, many dogs can recover fully and lead comfortable lives. Here's what to expect and some guidelines to help your furry friend through the recovery process:

Post-Treatment Observation

After any procedure, whether endoscopic removal, surgical excision, or cryotherapy, it's essential to keep a close eye on your dog for any signs of complications. This includes excessive bleeding, severe pain, or signs of infection such as swelling, redness, or discharge.

Dietary Adjustments

Post-treatment, your vet might recommend a bland diet or one rich in fiber to ease the digestive process and reduce strain during defecation. This can help in faster healing of the treated area and reduce the risk of further complications.

Pain Management

Depending on the invasiveness of the treatment, pain relief might be necessary. Your vet will prescribe appropriate pain relievers to ensure your dog remains comfortable throughout the recovery phase.

Activity Restriction

Limiting physical activity, especially rigorous play or exercise, is advisable for a period following treatment. This ensures that the healing area isn't subjected to unnecessary stress or potential injury.

Wound Care

If your dog underwent surgical excision, wound care becomes paramount. Ensure the incision site remains clean and dry. Prevent your dog from licking or biting the area, as this can introduce bacteria and delay healing.

Regular Check-ups

Follow-up appointments with your veterinarian are crucial. They will monitor the healing process, check for any signs of recurrence, and make necessary adjustments to medications or dietary recommendations.

Long-term Monitoring

Even after the immediate recovery period, it's essential to monitor your dog for any signs of recurrent polyps or associated symptoms. Regular vet check-ups will be instrumental in this monitoring process.

Emotional Support

Physical health aside, undergoing treatment can be a stressful experience for your dog. Ensure you provide plenty of affection, comfort, and a calm environment to aid in their emotional recovery.

With proper management and adherence to veterinary guidelines, dogs can recover from rectal polyps with minimal long-term implications. As always, open communication with your veterinarian and timely interventions are the key to ensuring your dog's well-being.

VetMed Treats Rectal Polyps in Dogs

At VetMed, we are dedicated to offering comprehensive care for dogs diagnosed with rectal polyps. Utilizing innovative diagnostic tools and advanced treatment methods, our team of experienced veterinarian professionals ensures that each canine patient receives personalized care tailored to their specific needs. With a focus on minimally invasive procedures and maximizing comfort during recovery, VetMed stands at the forefront of rectal polyp treatment, ensuring your furry friend returns to their playful self in no time.


Questions You've Asked Us About Rectal Polyps in Dogs

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

How do you treat rectal polyps in dogs?

At VetMed, we remove rectal polyps using Rectal Polypectomy which is a minimally invasive procedure using a flexible endoscopy and a polypectomy snare. The snare encircles the polyp and with electrocautery, the polyp is excised and cauterized.

Why do dogs get rectal polyps?

How serious are rectal polyps?

How much does it cost to remove a rectal polyp in a dog?

How common are rectal polyps in dogs?


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