A dog dragging its bottom across the floor may look briefly comic, but repeated scooting is a sign of discomfort worth taking seriously. It describes a behaviour; it does not identify the cause.
Anal-sac problems are one possibility. They are not a diagnosis an owner can confirm simply by watching a dog scoot, and the behaviour is not an automatic instruction to empty the glands at home.
Notice the accompanying signs
VCA’s veterinary explanation of anal-sac disease describes signs including scooting, licking or biting around the rear, and pain. Impaction, infection, and abscesses require different assessment and treatment. Other conditions can also cause irritation in the same area.
Useful observations include when the behaviour began, whether it follows toileting, and whether your dog seems reluctant to sit. Note any visible swelling, discharge, blood, or difficulty passing stool. A short video of the behaviour can help explain what you mean without repeatedly provoking it.
Do not squeeze a painful area to test a theory. Apart from causing distress, an attempted home procedure can delay appropriate assessment. Contact a veterinarian promptly if there is pain, swelling, discharge, bleeding, or difficulty toileting; a dog that appears unwell needs timely advice.
Make the appointment about the pattern
Prepare a simple account: how often it happens, any recent stool changes, and any previous treatment. If a groomer has expressed concern, pass on that observation while distinguishing it from a veterinary diagnosis.
You can ask the veterinarian what they found, whether follow-up is necessary, and which changes at home are appropriate for your dog. Avoid starting a supplement or making a large diet change on the assumption that every scooting episode has the same explanation. An individual examination provides the basis for that decision.
For a long-coated dog, describe anything you notice around the coat as well, but avoid painful handling or cutting close to irritated skin. The aim is to reduce uncertainty for the clinician, not perform a miniature examination yourself. Once the cause is established, ask what improvement should look like and when persistent signs should be reviewed.