What Causes a Dog to Scoot on Their Bottom? | Anal Glands &

You’re relaxing on the couch when your dog plants its rear on the carpet and drags itself across the room. It looks funny — and maybe a little embarrassing — but it’s your dog’s way of signaling that something feels off down there.

While an old wives’ tale points squarely at worms, the real story is more nuanced. Most scooting stems from anal gland discomfort, allergies, or simple irritation — issues that are usually easy to address once you identify the cause. Let’s walk through the possibilities, why they happen, and when a vet should get involved.

The Most Common Culprit: Anal Gland Issues

Anal glands, or anal sacs, are two small pouches located on either side of the anus. They produce a thick, smelly fluid that dogs use to mark territory. Normally, these glands empty a little every time your dog poops.

When the ducts get obstructed, the fluid builds up, causing pressure and discomfort. That’s when the scooting starts. The American Kennel Club explains that scooting is a dog’s way of fixing something wrong in the anal area — an attempt to relieve the irritation by dragging the bottom along the ground.

If the glands become impacted and aren’t expressed, they can get infected, leading to an abscess that may rupture. That’s a painful situation that definitely needs veterinary attention.

When Full Glands Become a Problem

Not every dog has trouble emptying its glands naturally. Small breeds, overweight dogs, and those with chronic soft stool or diarrhea are more prone to impaction. Obesity can weaken the anal sphincter muscles, making it harder for the glands to empty during bowel movements.

Why the Old Wives’ Tale Persists

Many owners still assume worms are the main reason dogs scoot. Tapeworms do cause itching around the rear — the segments can irritate the skin as they pass. But in reality, anal gland issues and allergies are far more common.

Here are the primary causes arranged by how often they tend to show up:

• Full or impacted anal glands: The most frequent reason. The built-up fluid creates pressure that the dog tries to relieve by scooting.
• Allergies (food or environmental): Inflammation in the anal area can cause the glands to swell and not empty properly. Food allergies are a common hidden trigger.
• Intestinal parasites (especially tapeworms): Itching from tapeworm segments around the anus can lead to scooting, though this is less common than anal gland problems.
• Dirty rear or matted fur: Leftover stool, matted hair, or debris stuck around the anus can cause irritation that the dog tries to scrape off.
• Skin infections or general irritation: Perianal dermatitis or other skin issues can make the area itchy and uncomfortable.

As you can see, worms aren’t the star of the show — but they do make a guest appearance. A vet can run a fecal test to rule them out if needed.

Other Physical Causes You Should Know

Sometimes the reason isn’t directly in the anal area. A urinary tract infection (UTI) can cause a dog to drag its bottom. The discomfort in the urinary tract may be misinterpreted as anal irritation, or the dog may simply be trying to soothe itself.

Constipation and diarrhea both play a role. Diarrhea or very soft stool doesn’t provide enough bulk to naturally express the anal glands during defecation, leading to buildup. Constipation, on the other hand, can cause straining and pressure that makes scooting more likely.

If your dog scoots once or twice, it’s likely nothing to worry about. But if it becomes a repeated behavior, it’s worth investigating.

When a Vet Visit Is Necessary

Most scooting is caused by a minor issue like a full anal gland, an itch, or leftover stool — easily treated. However, there are clear signs that professional help is needed.

Watch for these red flags: scooting multiple times a day, constant licking or biting of the rear, visible swelling or redness near the anus, a foul smell, discharge (especially bloody or pus-like), or signs of pain when your dog sits. Per PetMD’s anal glands guide, impacted anal glands can quickly turn into a painful infection that may lead to an abscess and rupture if left untreated.

Your vet can manually express the glands, check for infection, and recommend treatment. They may also suggest a diet higher in fiber to add bulk to the stool, which helps the glands empty naturally. Some dogs benefit from probiotics or a change in food if allergies are suspected.

A veterinary exam can distinguish between a simple impaction that needs expression and a more serious infection requiring antibiotics or drainage.

Prevention Tips Worth Trying

Not all scooting can be prevented, but a few habits may help reduce the chances. Keeping your dog’s rear end clean and trimmed can prevent matted fur trapping debris. A diet with adequate fiber — such as adding a small amount of canned pumpkin (plain, not pie filling) — can firm up stool and help the anal glands empty naturally during poops.

If your dog is prone to allergies, working with your vet to identify triggers and adjust food or environment can make a big difference. Regular exercise and maintaining a healthy weight also support good anal gland function. And if your dog has chronic soft stool, your vet may recommend a high-fiber diet or a probiotic to improve stool consistency.

The Bottom Line

Dog scooting is usually a sign of full anal glands, allergies, or a dirty rear end — not worms as many people assume. Most cases resolve with a simple vet visit or a quick clean-up at home. But if scooting persists or comes with swelling, discharge, or constant licking, prompt veterinary care can prevent an abscess from forming.

Your veterinarian can assess your dog’s anal glands, run a fecal test for parasites, and discuss dietary adjustments tailored to your dog’s specific needs and body condition.