Zygomatic bone protrusion may be caused by physiological factors such as bone development and thinness of the body, or it may be caused by diseases such as maxillofacial cellulitis and acromegaly, or it may be caused by other diseases such as obesity. 1. Physiological factors: the protruding zygomatic bone of the patient may be a normal physiological phenomenon caused by the congenital development of bones and muscles, and it may also be that the patient himself is thin and has less fat on the face, which will also make the patient’s zygomatic bone protrude, which is a normal phenomenon. 2. Maxillofacial cellulitis: Maxillofacial cellulitis is mainly caused by odontogenic infection, glandular infection and other factors, and the patient will have localized redness, swelling, high fever, difficulty in eating and other symptoms. If the patient’s face is red and swollen, it will also lead to the phenomenon of zygomatic bone protrusion. 3. Acromegaly: acromegaly is mainly caused by the secretion of growth hormone by pituitary adenomas, and the main symptoms of patients are overgrowth of soft tissues, bones and cartilages, rough skin and rough face. Patients with acromegaly also have symptoms such as sparse teeth and giant tongue. 4. Other: Facial tumors, cysts and other diseases can also lead to zygomatic bone protrusion. When patients have symptoms of zygomatic bone protrusion, it may be a normal phenomenon caused by physiological factors and does not need treatment. If it is caused by diseases, patients should seek medical treatment in time and follow the doctor’s instructions.