What's wrong with the old cat humming? Cats sometimes make sounds to express their emotions, such as calling Jiji is expressing their dissatisfaction or protest. Cats can also make other sounds, such as humming, which is to express their desire to be paid attention and caressed.

1. The owner should observe whether the cat has been frightened or hit recently. If so, it means that the cat was scared or injured. The owner should comfort the cat and treat the wound.

2. Has the owner not played with the cat for a long time? Sometimes the cat will act coquettishly and want the owner to play with it.

3. See if the cat is in heat. In addition to chirping, cats will also often rub around, stick their butts, and roll around on the ground.