Anal Gland Problems in Dogs and Cats: Signs and Care

Anal glands are one of those parts of pet anatomy that most owners never think about — until something goes wrong. Then, suddenly, there is scooting across the carpet, obsessive licking, or an unmistakable fishy odor that seems to follow your dog or cat around the house. These small scent glands are a normal part of both dogs and cats, and understanding how they work takes a lot of the mystery and worry out of the situation.

Anal sac problems are among the more common reasons dogs are brought to the veterinarian, and while they are less frequent in cats, they certainly do happen. Most issues are uncomfortable rather than dangerous, but a few can progress to painful infections and abscesses if ignored, so knowing what to watch for genuinely matters.

This guide explains what anal glands are and what they do, the signs that they are causing trouble, why some pets have repeated problems, what care looks like at home and at the clinic, and the practical steps that can lower the chance of flare-ups in the future.

Important: This article shares general educational information for pet owners and is not a substitute for an in-person veterinary examination, diagnosis, or treatment. For any medical concern or emergency, contact your veterinarian promptly.

What Are Anal Glands and What Do They Do?

Anal glands — more precisely called anal sacs — are two small, grape-sized pouches located just inside the anus, roughly at the four o'clock and eight o'clock positions. Each sac is lined with specialized glands that produce a distinctive, oily, strong-smelling fluid. In the wild, this fluid acts as a scent marker: it carries information about the individual animal, which is part of why dogs are so interested in sniffing each other's rear ends.

Normally, a small amount of this fluid is squeezed out each time your pet passes a firm stool, thanks to gentle pressure on the sacs during a bowel movement. This natural emptying keeps the sacs from overfilling. When that process is disrupted — because stools are too soft, the sac openings are narrow, or the fluid is unusually thick — the sacs can fail to empty properly, and that is where problems begin.

The Most Common Anal Gland Problems

Anal sac trouble generally falls into a progression of increasingly serious stages. Recognizing which stage your pet may be in helps you understand how urgently they need to be seen.

• Impaction. The sacs fill with thick fluid that will not empty on its own. This is uncomfortable but not yet infected, and it is the most common issue.
• Sacculitis (inflammation and infection). Trapped fluid becomes inflamed and bacteria multiply, causing swelling, redness, and pain.
• Abscess. An infected sac fills with pus, swells dramatically, and may rupture through the skin near the anus, releasing bloody, foul discharge.
• Recurrent disease. Some pets, especially certain dogs, deal with the cycle repeatedly and need an ongoing management plan.
• Tumors. Less commonly, growths can develop in the anal sac region; these are one reason a veterinary exam is important for any persistent problem.

Signs Your Pet's Anal Glands Need Attention

Pets cannot tell us their bottom hurts, so they show us through behavior. The classic sign is scooting — dragging the rear end along the floor or grass — but there are several others worth knowing.

• Scooting. Dragging the bottom across the ground is the signature sign of anal gland discomfort in dogs, though it can also signal worms or other irritation.
• Excessive licking or biting. Frequent licking or nibbling at the anal area or base of the tail is common, and cats in particular tend to overgroom the area.
• A fishy or foul odor. A persistent, unmistakable smell that returns soon after bathing often points to leaking or overfull sacs.
• Visible swelling or redness. A bulge, swelling, or reddened skin beside the anus can indicate an abscess forming.
• Discomfort sitting or defecating. Straining, crying out, or a reluctance to sit can accompany painful sacs.
• Blood or pus. Discharge near the anus is a red flag that infection or a ruptured abscess is present.

Why Do Some Pets Have Repeated Problems?

If your dog or cat seems to deal with anal gland issues over and over, there is usually an underlying reason rather than simple bad luck. Chronically soft stools are a leading factor: firm stool is what naturally compresses the sacs during defecation, so ongoing loose stool means the sacs rarely get that squeeze. Diet, food sensitivities, and digestive conditions all feed into stool quality.

Body weight plays a surprisingly large role. Overweight pets carry more fat around the anal region, which can interfere with the natural positioning and emptying of the sacs. Small-breed dogs appear more prone to anal sac disease than large breeds, and skin allergies — which cause generalized inflammation — are also associated with more frequent flare-ups. Individual anatomy, such as unusually narrow duct openings, rounds out the picture.

Safe Home Care and What to Avoid

Many owners have heard that they can express anal glands themselves at home. While groomers and some owners do learn this, it is easy to do incorrectly, and overly frequent or rough expression can actually irritate the sacs and make problems worse. For most pet owners, the safest approach is to let a veterinarian or trained veterinary technician handle expression and show you what is appropriate for your individual pet.

• Support healthy stool. A consistent, appropriate diet that produces firm stools helps the sacs empty naturally; your veterinarian may suggest an increase in dietary fiber.
• Keep the area clean. Gently wiping the area with a pet-safe wipe can help with odor and hygiene, but avoid harsh scrubbing of sore skin.
• Warm compresses. For mild swelling, a warm — never hot — compress can offer comfort, but only alongside veterinary guidance, not instead of it.
• Do not squeeze a swollen, painful bump. A hot, swollen lump may be an abscess; forcing it can be very painful and cause damage. Have it examined instead.
• Manage weight. Helping an overweight pet reach a healthier body condition can reduce recurrence over time.

Any supplement or fiber addition should be discussed with your veterinarian first and viewed as a complement to proper care — never a replacement for a professional examination when your pet is in pain.

When to See the Veterinarian

Occasional, brief scooting with no other signs can sometimes resolve on its own, but a veterinary visit is the right call whenever the problem is repeated, severe, or accompanied by warning signs. Because anal sac tumors and infections can hide behind the same early symptoms as simple impaction, it is far safer to have a professional look than to assume.

For any situation that looks like a medical emergency — a ruptured abscess, significant bleeding, or a pet in obvious distress — contact your veterinarian or the nearest emergency animal hospital promptly.

What Treatment Usually Involves

Treatment depends entirely on the stage. Simple impaction is often relieved by professional expression of the sacs. Infected or inflamed sacs may require flushing and medication prescribed by your veterinarian, along with pain relief. Abscesses typically need to be drained and treated, and the area kept clean while it heals. Your veterinarian will tailor the plan to your pet and explain the follow-up.

For pets with truly recurrent, severe disease that does not respond to management, veterinarians occasionally discuss surgical removal of the anal sacs as a last resort. This is an involved decision with its own considerations, and it is only pursued after more conservative approaches have been given a fair trial. The vast majority of pets never need anything close to surgery.

Preventing Future Flare-Ups

Prevention centers on the factors you can influence. A steady diet that produces firm, well-formed stools does more than almost anything else, because it restores the natural squeeze that keeps the sacs emptied. Keeping your pet at a healthy weight reduces the mechanical interference that extra body fat causes around the anal region. Managing skin allergies, when they are present, lowers the background inflammation that seems to worsen anal sac disease.

Regular grooming and routine wellness visits also help, because a groomer or veterinarian may notice a developing problem before it becomes painful. If your pet is one of the individuals prone to repeated issues, your veterinarian can help you build a simple, personalized routine — often a combination of dietary adjustments, weight management, and periodic checks — that keeps flare-ups to a minimum.

Frequently Asked Questions

Is scooting always an anal gland problem?

No. Scooting can also come from intestinal parasites, itchy skin, irritation, or residue stuck in the fur. Because the causes overlap, a veterinary check is the reliable way to know what is really going on.

Do indoor cats get anal gland problems?

Yes, though less often than dogs. Cats tend to overgroom the area rather than scoot, so signs can be subtler. Any persistent licking under the tail is worth mentioning to your veterinarian.

Should I express my healthy pet's glands routinely?

Generally no. If the sacs are emptying normally on their own, routine expression is unnecessary and can even cause irritation. Expression is best reserved for pets that actually need it, guided by a professional.

Can diet really make a difference?

Often, yes. Because firm stool is what empties the sacs naturally, the diet-driven quality of your pet's stool has a direct effect. Talk to your veterinarian before making changes so they fit your pet's overall health.

Anal gland problems are common, usually manageable, and rarely serious when addressed early. Learn the signs, resist the urge to squeeze a painful lump, and lean on your veterinary team — your pet will thank you for the quick relief.