Cheek biting while eating may be caused by wisdom tooth problems, tooth bite problems, chewing habit problems and so on. 1. Wisdom teeth problem: Usually the patient’s wisdom teeth grow or become inflamed on the buccal side, especially the inflamed wisdom teeth will form a swelling, which can easily lead to the patient biting his/her cheeks when he/she eats. 2. Teeth bite problem: Usually uneven bite or uneven distribution of teeth, too sharp tooth tip may lead to local inflammatory reaction in the oral cavity, resulting in tissue edema, which may easily lead to the patient eating to bite the cheek. 3. Chewing habits: If the patient usually likes to chew food with one side of the teeth, it may lead to one side of the chewing muscles developed, which may easily lead to the patient biting the cheek. There may be other reasons for biting the cheeks during meals, so we suggest that patients should consult the doctor in time and standardize the treatment under the doctor’s guidance.