Dog Anal Glands Explained: Scooting, Odour, Expression, and Infection Warning Signs
Understand why dogs scoot or smell fishy near the rear—and when home watching is not enough.
Anal glands (anal sacs) sit beside the anus and normally empty a strong-smelling fluid during bowel movements. When they do not empty well, dogs may scoot, lick the area, chase the tail, or carry a sudden fishy odour. Occasional issues respond to veterinary expression and addressing soft stools or allergies; swelling, pain, abscess, or blood needs prompt care. Routine “just in case” squeezing at home can irritate tissues if done incorrectly.
Key takeaways
- Scooting is a symptom—not a diagnosis; parasites, itch, and glands all make the list.
- Thick secretions, pain, or a rupture-like wound around the anus require a clinic visit.
- Fibre, firm stools, and weight control help some dogs empty glands more naturally.
Common signs
- Dragging the rear on the floor
- Sudden fishy or foul odour
- Licking or biting under the tail
- Swelling to one side of the anus
- Discomfort when sitting or during defecation
Why glands clog
Soft stool may not press the sacs enough to empty them. Allergies and chronic skin inflammation often travel with recurrent gland problems. Soft-coated and small breeds appear frequently in clinic caseloads, but any dog can be affected.
- Do not insert objects into the anus at home
- Avoid repeated forceful expression without training—injury and scarring are real risks
- Open sores or draining tracts need professional treatment
Want practical hygiene support between vet visits?
Our Grooming Guidance pathway covers safer rear-end hygiene habits that complement veterinary care. Message us on WhatsApp if scooting or odour has become frequent.
When to go in
- Visible swelling, bleeding, or pus near the anus
- Crying when toileting or unable to pass stool
- Repeated scooting despite recent professional expression
Educational content only. This page does not diagnose disease or replace care from a licensed veterinarian. Seek in-person help for emergencies or worsening symptoms.