How to prevent breast enlargement? 1, maintain a good state of mind: less anger, less temper, maintain emotional stability. 2, change dietary habits: eat less fried, high-calorie, high-fat food; eat less spicy and stimulating food; eat more iodine-rich seafood such as seaweed, vegetables, fruits, soy products, mushrooms, fungus and coarse grains, etc. 3, maintain good habits: regular life, work and rest, do not stay up late; maintain a harmonious sex life, can regulate endocrine disorders; keep a smooth bowel movement can reduce breast swelling and pain. 4, more exercise: to prevent obesity to improve immunity. 5, prohibit the abuse of contraceptives and estrogen-containing beauty products, do not eat estrogen-fed chicken, beef. 6, to avoid abortion, maternal breastfeeding more, can prevent the problem before it happens.