The cat suddenly panted a few times and then recovered. You need to observe whether the cat’s mental state is abnormal. If there is no abnormality, it may be caused by external factors and it is not a serious problem. If the cat’s mental state is not good, it may be a respiratory disease and needs to be sent to hospital. Go to the hospital for examination and treatment. Generally, overheating, choking of the throat and trachea, strenuous exercise and stress reactions will cause cats to suddenly pant. Owners need to take good care of cats to prevent cats from being exposed to external stimulation.