The main causes of cheek acne are heredity, bad dietary habits, inadequate facial cleansing, and endocrine disorders. 1. Heredity: acne has a certain relationship with heredity, if the parents once suffered from acne, then the probability of the child suffering from acne is greater than the general population. 2. Bad dietary habits: eating spicy and irritating foods such as chili, pepper, ginger and garlic, or eating too sweet and greasy foods will lead to an increase in sebum secretion, which will lead to acne. 3. Inadequate facial cleansing: If you wear too much make-up and do not clean thoroughly after make-up, it is easy to block the pores of the hair follicles and sebaceous glands, resulting in acne on both sides of the cheeks. 4. Endocrine disorders: Endocrine disorders in the body will lead to increased levels of androgens, making the sebaceous glands of the skin increase their secretion function, and the pores of the hair follicles and sebaceous glands will easily be clogged, which will eventually cause acne. Since there are many reasons for acne on the cheeks, it is important to seek medical attention to identify the cause of the condition and treat it.