The sudden lameness of a cat with folded ears may be caused by a fall, fight or illness. After the cat becomes lame, send the cat to the hospital for examination promptly to determine the cause. If the lameness is caused by a congenital genetic defect, there is no way to recover and the only way to relieve their pain is through medication.

Causes of lameness in cats:

1. If lameness is caused by a fall or fight, there will usually be trauma. The owner can first check the cat’s legs to see if there is any damage. At the same time, check the cat's foot pads to see if they have been punctured by sharp objects.

2. You can gently pinch the cat’s spine. If the cat resists, there may be a problem with the spine. If there is a problem with the spine, you must return the cat to the hospital immediately for examination and timely treatment.

3. Malnutrition may also cause lameness in cats. If a cat lacks nutrients during its growth process, the cat's bones will not grow healthily and lameness will occur.