Dog Anal Glands: Signs of Problems & Expression Guide

Anal sacs produce a strong-smelling fluid used for scent communication. A small amount is usually released when firm stool passes through the rectum. That is why many healthy dogs never need manual expression.

When stool stays soft, the sacs may not get enough pressure to empty well. Over time, the material can become thick and pasty, which raises the chance of impaction and inflammation.

Watch for scooting, licking or chewing at the rear end, a sudden fishy smell, discomfort when sitting, tail chasing, or turning to look at the back end. Some dogs strain to defecate, pass ribbon-like stool, or seem painful during bowel movements.

More urgent signs include swelling beside the anus, red or purple skin, blood or pus, an open draining wound, marked pain, constipation, or lethargy. Those signs can mean infection or an abscess and should be checked promptly by your vet.

Manual expression can help when the sacs are full but not infected, ruptured, or severely inflamed. Your vet may recommend occasional expression for dogs with a known history of uncomplicated impaction.

External expression is the only home method pet parents should consider, and only after hands-on instruction from your vet. Internal expression is commonly used in clinics but should not be attempted at home unless your vet has specifically trained you to do it.

Do not attempt home expression if your dog cries out, resists strongly, has red or swollen skin, is straining to poop, or if you see blood, pus, chunky discharge, or an open sore. Stop if you can feel a swollen sac but nothing comes out.

These situations can point to infection, abscess, obstruction, or another problem that needs an exam. Anal gland signs can also mimic perianal masses and anal sac tumors, so persistent or one-sided swelling should never be ignored.

If your vet has said home care is appropriate, gather gloves, paper towels, a helper, and a washable surface. Lift the tail, place your thumb and forefinger just below the anus at the 4 o'clock and 8 o'clock positions, and apply gentle inward-and-upward pressure. Normal material may be thin to pasty and tan to brown.

Stop right away if your dog seems painful, if nothing expresses despite a clearly enlarged sac, or if the material is bloody, pus-like, or gritty. Clean the area well afterward and contact your vet if signs return quickly or become more frequent.

Prevention depends on the cause. Many dogs benefit from firmer stools, weight management, and treatment of underlying skin or allergy disease. Your vet may suggest a diet change or fiber support to increase stool bulk, but the right plan varies by dog.

If episodes keep recurring, ask your vet whether your dog needs a broader workup for allergies, chronic diarrhea, parasites, or skin disease. Dogs with repeated infections or abscesses may eventually be candidates for surgery, but that is usually reserved for cases that do not respond well to medical management.

A routine anal gland expression at a general practice or grooming add-on often falls around $20-$60, though clinic fees vary by region and whether an exam is included. An office visit plus exam and expression commonly lands around $70-$180 total.

If your dog needs sedation, flushing, cytology, antibiotics, pain relief, or treatment for an abscess, the cost range often increases to about $200-$600 or more. Surgical anal sacculectomy for chronic or severe disease commonly ranges from about $1,200-$3,500+, depending on whether one or both sacs are removed, your location, and whether specialty care is involved.