Dog scooting: 4.4% of dogs in one year across 104,212 records
Published by Planète Pets · managing editor: Clément Lacaille · how our guides are written
A dog dragging its rear along the floor, licking under its tail or turning sharply towards its rump often suggests an anal sac problem. A study published in 2021 by O'Neill, Hendricks, Phillips, Brodbelt, Church and Loeffler in Veterinary Record puts a figure on it at scale for the first time (see the study, doi 10.1002/vetr.203). Our other guidance is gathered in the dog care and grooming section.
Contents · 6 sections
A cohort of 104,212 dogs over a full year
The authors drew on the electronic records of 110 British first-opinion practices across 2013, through the VetCompass programme. In that population, the prevalence of non-neoplastic anal sac disorders reaches 4.40% over twelve months (95% confidence interval: 4.22 to 4.57). This is a prevalence of recorded consultations: a dog that scoots without its owner seeking care does not appear, which probably underestimates the picture.
Skull shape weighs more than breed
Brachycephalic types — flat-faced dogs — show odds 2.6 times higher than dolichocephalic dogs with long muzzles. Compared with crossbred dogs taken as the reference, six breeds stand out with raised odds: cavalier king charles spaniel, king charles spaniel, cockapoo, shih tzu, bichon frise and cocker spaniel. Six others are less affected: labrador, border collie, staffordshire bull terrier, lurcher, german shepherd and boxer. These gaps are statistical associations; no anatomical measurement of the duct or of sphincter tone was made to explain them.
Heavier treatment than one might assume
Among the 2,372 confirmed cases whose records were reviewed in detail, antimicrobials were prescribed in 20.24% of cases (480) and analgesics in 11.97% (284). Surgical removal of the sacs concerns fewer than 1% of cases. A dog rubbing its rear is therefore not always a trivial matter, and antibiotic use on that scale is a concern in its own right.
Excess weight: absence of evidence, not evidence of absence
Excess weight is the factor owners cite most often. The British study provides nothing supporting that association — but it did not measure obesity: it compared each dog's weight with the mean for its breed and sex, which is not the same thing. Conversely, a survey published in 2022 by Corbee, Woldring, van den Eijnde and Wouters in Animals does list excess weight among predisposing factors (see the study). That survey rests on 69 responses from Dutch veterinarians and its authors state that they performed no statistical analysis: these are reported estimates, not measurements. The two pieces of work do not really contradict each other; they do not measure the same thing.
Should the sacs be expressed as a precaution?
Neither study tested manual expression in a dog showing no signs. The practice has been neither validated nor invalidated: it has simply never been evaluated. One point is established by Corbee and coauthors, however: the appearance of anal sac contents is not a reliable criterion. Diagnosis rests on clinical signs and veterinary examination, not on what one thinks one sees. In a dog that also scratches a great deal, the allergic route deserves parallel investigation, as we detail for atopic dermatitis in the bichon frise.
Frequently asked questions
Does scooting always mean an anal sac problem?
No: intestinal parasites, perianal skin irritation or dried faecal residue produce the same gesture. It is a warning sign, not a diagnosis.
Is a large-breed dog immune?
Large breeds are among the least affected in the cohort, but none is exempt: the labrador and the german shepherd have reduced odds, not zero odds. Find all our guides on the dog hub.
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This guide is part of Planète Pets’s Dogs universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.