Why Does My Dog Have Diarrhea?

Insights from Low Cost Veterinary Surgery Clinic of Scottsdale

At Low Cost Veterinary Surgery Clinic of Scottsdale, we know how stressful it can be when your dog has diarrhea. It’s messy, it’s worrisome, and it often leaves pet owners wondering: “Is this something I can manage at home, or should I call the vet?”

Diarrhea is one of the most common reasons pet parents reach out to us. In many cases, it’s mild and short-lived, but in others, it could be a sign of something more serious that needs medical attention. For small dogs and puppies, even brief bouts of diarrhea can lead to dehydration or dangerously low blood sugar (hypoglycemia). And anytime you see blood in the stool—whether it’s bright red or black and tarry—it’s time to seek veterinary care right away.

Let’s break down the most common reasons dogs get diarrhea and what to watch for:

1. Dietary Indiscretion (Eating Something They Shouldn’t)
   Dogs love to explore with their mouths, and sometimes that means eating things they shouldn’t—like garbage, spoiled food, or something they find on a walk. This is often called “garbage gut” and is a leading cause of sudden diarrhea.

What to look for:

• Loose, watery stools
• Occasional vomiting
• Otherwise normal playful behavior

Mild cases often improve with a bland diet (boiled chicken and rice) and monitoring. But if diarrhea continues, worsens, or your dog acts unwell, it’s time to call us.

1. Sudden Food Changes
   Even switching to a new, higher-quality food too quickly can upset a dog’s stomach. We always recommend transitioning to new foods gradually over 7–10 days.
2. Parasites
   Intestinal parasites like roundworms, hookworms, giardia, and coccidia are especially common in puppies and rescue dogs. These parasites can also be passed to people in some cases, so early detection and treatment are key.

We can perform simple stool tests to check for parasites and provide quick, affordable treatment.

1. Infections: Bacterial or Viral
   Certain infections can cause diarrhea, sometimes along with vomiting, lethargy, or fever. Quick treatment can prevent serious complications.

Infections to consider include:

• Parvovirus (particularly dangerous for puppies)
• Distemper
• Bacterial infections like Salmonella
• Tick-borne diseases such as Anaplasmosis

1. Food Allergies or Sensitivities
   Some dogs develop digestive issues because of food intolerances. Other symptoms may include:

• Itchy skin
• Chronic ear infections
• Paw licking or chewing

We can help you identify potential food allergies and suggest dietary adjustments or hypoallergenic options.

1. Stress and Anxiety
   Yes, stress can cause diarrhea in dogs too! Changes in routine, loud noises, travel, or separation can lead to “stress colitis.”

Common stress triggers:

• Boarding or daycare
• Fireworks or storms
• Moving or family changes

We can discuss affordable calming strategies or over-the-counter options if stress seems to be the cause.

1. Chronic Medical Conditions
   If your dog experiences frequent or ongoing diarrhea, it could be linked to chronic health conditions such as:

• Inflammatory Bowel Disease (IBD)
• Pancreatitis
• Liver or kidney issues
• Addison’s disease
• Cancer

We offer diagnostic testing to help uncover these issues and can work with you on cost-effective management plans.

1. Foreign Body Ingestion or Toxicity
   Sometimes diarrhea is a sign that your dog has swallowed something they shouldn’t—like socks, toys, bones, or even toxic substances.

Common dangers include:

• Grapes or raisins
• Chocolate
• Xylitol (found in sugar-free gum and treats)
• Toxic plants (like Sago Palm)
• Marijuana or THC

In some cases, surgery may be needed to remove blockages. Our clinic focuses on making surgery as affordable and accessible as possible for pet owners in Scottsdale.

1. Vaccine or Medication Reactions
   Though rare, some dogs have mild to moderate allergic reactions to vaccines or medications. Diarrhea may be one symptom, along with:

• Vomiting
• Facial swelling or hives
• Lethargy

Call us if you notice these symptoms after any vaccination or medication.

1. Parvovirus & Distemper (Puppies Are Most at Risk)
   These preventable but serious diseases can cause life-threatening diarrhea, especially in young, unvaccinated puppies.

Warning signs:

• Bloody diarrhea
• Vomiting
• Lethargy and appetite loss
• Neurological signs (with distemper)

We offer affordable vaccination packages to help protect your puppy from these devastating illnesses.

When Should You Call Us?
Please reach out right away if your dog has:

• Diarrhea lasting over 24 hours
• Vomiting alongside diarrhea
• Blood in the stool
• Lethargy, weakness, or refusal to eat

How We Can Help Diagnose and Treat Diarrhea:
At Low Cost Veterinary Surgery Clinic of Scottsdale, we offer practical, budget-friendly options including:

• Fecal testing for parasites or infections
• Parvo testing
• Bloodwork to check organ function
• X-rays or ultrasound if needed

Treatment may include:

• IV fluids for hydration
• Deworming medications
• Anti-nausea and anti-diarrheal drugs
• Bland or prescription diets
• Surgery if a foreign object is involved

Compassionate Care That Fits Your Budget
We understand that unexpected veterinary expenses can be stressful. Our mission at Low Cost Veterinary Surgery Clinic of Scottsdale is to provide excellent care that’s affordable for every pet family. If you’re concerned about your dog’s diarrhea, don’t hesitate to call—we’re here to help get your pet back to health without breaking the bank.