Cat and Dog Gastrointestinal Diseases

How to Recognize Them and What to Do

Digestive issues, specifically vomiting, loose stool, refusal to eat, and lethargy, are symptoms familiar to many pet owners. The challenge is that outwardly similar signs can point to completely different conditions—ranging from a mild stomach upset to a serious illness requiring urgent medical care. Therefore, it is crucial not only to notice the symptom but also to accurately assess the pet’s overall condition.

Symptoms to Watch For and When to Book an Urgent Appointment

Even though cats and dogs experience GI diseases differently, many of their symptoms overlap. The main warning signs that require immediate attention include:

• Vomiting, especially when repetitive, containing food, bile, blood, or foam;
• Diarrhea, including stool mixed with blood or mucus;
• Refusal to eat for more than 24 hours;
• Abdominal bloating or a painful reaction when the belly is touched;
• Severe lethargy and apathy;
• The pet refuses to drink water.

If one or more of these symptoms persist or worsen, it is a clear sign to see a doctor rather than wait.

Most Common GI Diseases

Gastritis—an inflammation of the stomach lining—occurs in both cats and dogs. In dogs, it is often linked to eating low-quality or spoiled food, or swallowing foreign objects. In cats, gastritis is frequently chronic and can go unnoticed for a long time. The main manifestations are intermittent vomiting, decreased appetite, and discomfort after eating.

Pancreatitis—an inflammation of the pancreas—is a serious condition that requires veterinary supervision. In dogs, pancreatitis often occurs acutely and is accompanied by severe abdominal pain, vomiting, and a refusal to eat. In cats, the disease tends to develop more subtly, with the primary symptoms being lethargy and a reduced appetite accompanied by occasional vomiting. Both cases require professional diagnostics—it is practically impossible to distinguish pancreatitis from other conditions on your own.

Poisoning: A Critical Topic

Pets explore the world using their noses and mouths, and what they taste is not always safe. Below are the substances and plants that are particularly dangerous:

If you have even the slightest suspicion of poisoning, do not wait for symptoms to appear. The faster the animal is examined by a vet, the better the prognosis.

Diagnostics at Haabersti Loomakliinik

When you visit Haabersti Loomakliinik in Tallinn, the veterinarian will perform a clinical examination and typically order blood tests and an abdominal ultrasound. This allows for a quick assessment of the organs and helps determine the correct treatment strategy. In complex cases, such as suspected chronic inflammatory bowel diseases that require specialized expertise, the clinic may refer you to an external veterinary gastroenterologist for an in-depth evaluation.

Cat and dog GI diseases respond well to treatment—especially when addressed in time. Do not engage in self-treatment: giving human medications to animals without a vet’s prescription is dangerous. Do not delay your visit if something in your pet’s behavior or well-being concerns you. The team at Haabersti Loomakliinik is ready to help assess the situation and find the right solution.

See also Cat and Dog Vomiting, How to Give Pills to Your Cat