The canine digestive system, like that of humans, is a complex yet efficient mechanism. Sometimes, however, things can go amiss, leading to issues like constipation. Constipation in dogs refers to the irregular or difficult passage of stools. 

This condition can be painful and, if left untreated, could lead to serious health complications. A constipated dog may produce hard, dry stools or, in severe cases, may not produce any stools at all.

Understanding Constipation in Dogs

Why Do Dogs Get Constipated?

Constipation in dogs, while a common concern for many pet owners, can often be traced back to specific causes. While it’s not always preventable, understanding its root causes can help in its early detection and treatment.

Dietary Issues

One of the most common reasons dogs face constipation is their diet. A lack of fiber can lead to harder stools that are difficult to pass. Fiber aids in digestion by adding bulk to the stool and drawing water to the intestines, softening the faeces. 

Dogs, being curious creatures, may also consume non-food items. Foreign objects such as bones, plastic toys, pieces of clothing, or even rocks can lead to obstructions in their digestive tract, causing constipation.


Water is not just essential for quenching thirst; it plays a pivotal role in digestion. When a dog is dehydrated, their body absorbs more water from the food they digest, leading to drier and harder stools. This makes the passage of faeces through the intestines more difficult. 

Regular access to clean and fresh water can go a long way in preventing dehydration-induced constipation.

Lack of Exercise

Physical activity is not just for keeping your dog’s weight in check; it’s also vital for their digestive health. Exercise stimulates the intestines and can facilitate smoother bowel movements. 

Dogs that lead a more sedentary lifestyle or aren’t engaged in regular physical activities might face digestive stagnation, leading to constipation. Find out the exercise requirements of your dog. Smaller dogs like Mini Cavoodles and Shih Tzus need about 30 to 60 minutes a day, while bigger, more active breeds like Border Collies might need up to 2 hours of exercise. 

Medications and Supplements

Just as in humans, certain medications can have side effects that impact digestion in dogs. Painkillers, antihistamines, diuretics, and certain types of supplements can sometimes interfere with regular bowel movements, leading to constipation. 

It’s always important to monitor your dog’s stool and general health when they are on any new medication.

Medical Conditions

There are also underlying medical issues that can lead to constipation. For instance, an enlarged prostate, especially in older male dogs, can press against the rectum, making it harder for them to defecate. 

Similarly, tumors or hernias can cause obstructions in the digestive tract. In some cases, nerve issues or injuries near the pelvic region can interfere with their ability to defecate.


Just like humans, a dog’s body undergoes various changes as they age. Their metabolic rate might decrease, and muscle tone may reduce, including in the muscles that aid in defecation. 

As a result, older dogs tend to have more instances of constipation compared to younger ones.

Symptoms of Constipation in Dogs

Understanding the signs of constipation is crucial for dog owners. Some common symptoms include:

  • Straining to defecate with little or no success
  • Producing dry, hard stools
  • Whining or showing signs of discomfort while trying to defecate
  • Reduced appetite or total loss of appetite
  • Lethargy or depression
  • Swollen or tender abdomen
  • Dragging the rear across the floor (a sign that the anal area is uncomfortable or itchy)

Helping Your Dog With Constipation

If you suspect that your furry friend is constipated, there are several steps you can take to alleviate their discomfort:

  • Dietary Adjustments: Incorporate sources of fiber into your dog’s diet. Canned pumpkin (not pie filling), wheat bran, and green beans are good sources of fibre. Remember, sudden changes in diet can lead to other digestive issues, so it’s important to introduce new foods gradually.
  • Hydration: Ensure your dog has access to fresh water at all times. Encouraging your dog to drink can aid digestion and alleviate constipation. This is especially important during summer months, as poor hydration can also lead to heat exhaustion and other health issues.
  • Regular Exercise: Engage your dog in regular physical activities. A simple daily walk can stimulate bowel movements.
  • Stool Softeners: Over-the-counter stool softeners can be used, but it’s essential to consult with a vet to determine the correct dosage and suitability for your dog.

When to Consult a Veterinarian

While many cases of constipation can be resolved with home remedies, it’s crucial to be vigilant for signs that require immediate veterinary attention:

  • If your dog hasn’t had a bowel movement for more than two days.
  • Signs of pain, bloating, or distress in your dog.
  • Presence of blood in the stools or any other unusual changes.
  • If constipation reoccurs frequently, even after home remedies.


While constipation in dogs can be concerning for pet owners, understanding its causes, symptoms, and treatments can make all the difference. Regular check-ups, a balanced diet, and frequent exercise can help in preventing this condition. 

However, always be alert to any changes in your dog’s behaviour or habits and consult with a veterinarian if in doubt. After all, our furry friends rely on us to ensure their well-being and happiness.