Old dog limping on a back leg: what to know

A limp may appear after rest, worsen on stairs, or become more obvious after a walk. Hip or knee osteoarthritis can cause stiffness and difficulty rising, while a sprain may follow a sudden turn or jump. A sore pad, broken nail, or something lodged between the toes can also change the gait. Less commonly, a fracture or a nerve problem affects weight-bearing. A dog may hide discomfort, so compare appetite, sleep, posture, and willingness to move rather than relying on crying.

The symptom alone cannot identify its cause. A veterinarian may watch your dog walk, feel the joints and spine, inspect the paws, and decide whether imaging or other tests are needed. Read more about [Hip Osteoarthritis](/conditions/hip-osteoarthritis/) and [Knee Osteoarthritis](/conditions/knee-osteoarthritis/).

Restrict running, jumping, rough play, and stairs. Use short, controlled toilet walks on a non-slip surface, and provide a padded resting area that is easy to reach. Check the paw gently for a torn nail, redness, swelling, or a foreign object, but stop if your dog resists. Record when the limp began, which leg bears weight, and whether it changes after rest. Do not give human pain medicine unless a veterinarian specifically prescribes it for your dog.

Arrange prompt veterinary care if the limp persists, returns, or limits normal movement. Seek urgent help if your dog cannot stand, will not put the paw down, has marked swelling or an abnormal limb position, cries when handled, or develops weakness, dragging, or loss of bladder control. A fall or other significant impact also warrants prompt assessment. [Limping](/symptoms/limping/) describes the sign, while [Hip Fracture](/conditions/hip-fracture/) and [Stress Fracture](/conditions/stress-fracture/) are examples of bone problems a clinician may need to exclude.

Ask: Which structures seem painful? Should activity be restricted, and for how long? Does my dog need an examination of the paw, spine, or knee as well as the hip? What signs mean the plan should change? Which medicines are suitable with my dog’s age, kidney health, and other treatments?