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• Limping and stiffness in cats

  There can be lots of causes of limping and stiffness in older cats, but arthritis is usually the most common cause.

• Bone cancer in dogs | PDSA

  Osteosarcoma is a type of bone cancer. Osteosarcomas are painful tumours that often first appear as hot, solid, tender swellings. They are most common in leg bones, but can affect any bone in the body.

• Legg Calvé Perthes disease in dogs

  Legg-Perthes is a painful condition that causes the hip joint to crumble and collapse. Legg-Perthes affects young dogs and is most common in small breeds.

• Arthritis in cats

  Arthritis (osteoarthritis) is a very common condition that causes painful, swollen joints and makes moving around uncomfortable.

• Saddle thrombus (aortic thromboembolism) in cats

  A saddle thrombus is a blood clot that blocks blood supply to the back legs. Symptoms appear suddenly and include severely painful, paralysed back legs. A saddle thrombus is an emergency.