Hello, according to the description, acne is usually acne. Western medicine believes that no matter where acne grows, the main reasons are related to excessive sebum secretion, sebaceous gland obstruction in hair follicles, bacterial infection and inflammatory reaction. However, grapefruit pulp is cold, sweet and sour, and has the medical functions of relieving cough and asthma, clearing away heat and fire, invigorating spleen and promoting digestion, and relieving alcoholism and vexation. So eating grapefruit won't cause acne.