A limp means your pet is in pain somewhere and is sparing a leg. Traumatic causes — wounds, bites, sprains, fractures — are common, especially in the warmer months. Many are minor, but some need prompt care: here is how to respond.

Where does a limp come from?

The most common causes are:

  • Infections, often after a bite from another animal: in cats they readily form an abscess (a pocket of pus), hot and painful. Every bite wound is contaminated and needs treating.
  • A foreign body (grass awn, thorn, splinter) lodged in a paw pad.
  • Injuries to bones and joints: fractures, dislocations, sprains, bruising.

Which signs should alert you?

  • Swelling, redness, heat or a wound on the leg
  • The leg held up, refusal to put weight on it
  • An abnormal position, a cracking sound, sharp pain when touched
When to seek help quickly — See a vet without delay if your pet will not put the leg down at all, if the limb looks deformed, if there is a wound or marked swelling, or after a serious impact (a fall, a car). A mild limp that lasts more than a day or two also deserves an examination.

What will the vet do?

The vet grades the limp, then examines the leg by eye (swelling, deformity) and by hand (pain, heat). An X-ray or ligament tests, often under light sedation, pinpoint the injury. Depending on the case: a bite or an abscess is cleaned and drained, with antibiotics; a minor injury is treated with anti-inflammatories and rest; a fracture or dislocation may need surgery, sometimes by an orthopaedic specialist.

Mistakes to avoid

  • Never give human painkillers (paracetamol, ibuprofen…): they are toxic, even fatal, especially to cats.
  • Ignoring a bite ‘that hardly bleeds’: bites become infected very often.
  • Letting your pet run about ‘because it doesn’t seem in much pain’: rest is essential for healing.

Prevention

Make balconies and windows safe (falls are common in cats), keep an eye on rough play and outings, and check the paw pads after a walk through long grass. After a fight, show any wound to your vet even if your pet seems fine.

The key points: a limp that lasts, a leg that bears no weight, a wound or a hard knock all call for an examination; in the meantime, rest and no human medicines. Most traumatic limps heal well when treated in time.