The reason why a cat bites after touching its belly is because the cat does not want you to touch its belly. Although a cat showing its belly to you shows friendliness and trust, it does not mean that the cat likes you to touch it. The cat wants you to touch its head instead of its belly, so the cat will show resistance.
Tips:
It is recommended not to touch the cat’s belly casually. You can touch the cat’s head, cheeks, back and other parts. .