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Senior dogs

My old dog hates being brushed now, what changed?

Last updated 23 September 2026 · How we write and check this

Short answer

A dog that previously tolerated or enjoyed brushing but now resists it is often reacting to physical discomfort, whether from joint stiffness in the position needed for brushing, sensitive skin, or a tender spot the brush is catching on. Gently checking your dog's body for sore areas, adjusting your brushing position, and using a softer brush are worth trying before assuming this is purely a behavioral change.

Physical discomfort as the most common explanation

Joint stiffness can make the standing or lying position needed for a thorough brushing session genuinely uncomfortable in a way it never was before, particularly if brushing takes several minutes and requires your dog to hold a specific posture throughout. A dog that was happy to stand still for brushing as a younger, more flexible adult may simply be less able to tolerate that same position now.

Checking for specific sensitive areas

Gently run your hands over your dog's body before reaching for the brush, checking for flinching, tender spots, or visible skin irritation that the brush might be catching on or pressing against during normal strokes. Age-related lumps, which are common and often harmless but should still be checked by a vet, can also make certain brushing strokes suddenly uncomfortable where they were not before.

Adjusting the brushing approach

Switching to a softer bristle brush, brushing in shorter sessions with breaks, and letting your dog lie in a comfortable position rather than insisting on standing can all reduce resistance considerably. If your dog continues to resist despite these changes, or seems to be in genuine pain rather than simply preferring to be left alone, a vet check is a reasonable next step. Pairing brushing with a favorite treat or a calm, quiet moment can also help rebuild a more positive association over several sessions.

Key takeaways

  • New resistance to brushing often reflects physical discomfort rather than a behavioral change.
  • Check your dog's body gently for tender spots or lumps before assuming the brush itself is the problem.
  • A softer brush and shorter sessions in a comfortable position often resolve mild resistance.
  • Persistent resistance or signs of genuine pain warrant a vet check rather than continued pushing through.