Betel nut cheeks are caused by over-chewing of betel nut which makes the biting muscles abnormally developed, and can be removed by improving bad habits, face and neck muscle exercises, and botulinum toxin injections. Betel nut fruit is a class 1 carcinogen and can easily lead to oral cancer, so it is recommended to quit the habit of chewing betel nut. 1. Correct bad habits: stop eating betel nut and other hard foods, reduce the frequency of biting muscle exercise, so that the local muscle groups to maintain a state of relaxation can help improve betel nut cheeks. 2. Face and neck muscle exercise: you can tilt your head back, turn your head and other neck stretching exercises, do face slimming exercises, and use your finger joints to press the jawline properly after cleansing your face will help to improve betel nut cheeks. 3. Botulinum toxin injection: Botulinum toxin injection can soften the local muscles and improve betel nut cheeks. It is recommended to go to a professional hospital to remove betel nut cheeks to avoid irreversible damage.