Coughing in cats can be a sign of respiratory illness. There are many types of respiratory illnesses, such as bronchitis, asthma, and pneumonia. These diseases typically cause cats to cough frequently, have difficulty breathing, and wheeze. If your cat exhibits these symptoms, it is recommended to take it to a veterinarian promptly for diagnosis and treatment.

In addition, a cat's cough can also be caused by over-excitement or stress. Some cats may cough when playing, seeing strangers, or hearing sudden noises, as this can lead to over-excitement or stress. In this case, you can try to soothe the cat and calm it down.