Breast enlargement is a common breast disease in women, the incidence of this disease is high, and with the improvement of living standards, the incidence of breast enlargement shows a rising trend. Therefore, women must know how to prevent the occurrence of breast enlargement. If women can follow these prevention methods, then away from breast enlargement is not difficult. 1, keep a good mood. Breast enlargement is the most afraid of you in a good mood, under the influence of anger, worry, anxiety, fear and other adverse situations, it will be obvious to feel breast pain. Because the mood is good, the ovaries normal ovulation and secretion of hormones, the mammary glands will not be stimulated by estrogen unilaterally and hyperplasia, has been hyperplasia of the mammary glands will also be in the role of progesterone gradual recovery; 2, regular life, maintain a good mood. Sufficient sleep, combination of work and rest, moderate exercise, healthy living habits is a good medicine to avoid endocrine disruption, clinical can be found that women with menstrual cycle disorders are more prone to breast hyperplasia than others. 3, low-fat high-fiber diet. Eat more whole grains, beans and vegetables to increase the body’s metabolism, avoid consuming too much estrogenic food to the point of causing breast enlargement, and avoid abusing contraceptive pills and estrogen-containing beauty products; 4. Timely marriage and childbearing. Pregnancy and breastfeeding are good ways to fight against breast enlargement, because pregnancy and breastfeeding have physiological regulation of mammary gland function, on the contrary, women who have abortion and are older without breastfeeding are prone to this disease; 5. Self-examination and regular review. Women can do self-examination, and if they find hard lumps and breast pain and other problems, they should have a medical check-up in the hospital in time. If there is a family history of breast disease and severe breast hyperplasia, they need to undergo dynamic observation.