The most common type of breast disease in women is breast enlargement. This is also the most commonly seen patient in outpatient clinics. By asking their medical history, the possible causative factors are summarized as follows: 1, poor dietary habits: fried food, high sugar, high fat diet. 2, with bad sleep, stay up late more. 3, hormone intake more: common are (1) consumption of hormone-fed poultry, aquatic products more. For example, many friends are addicted to chicken wings and suffer from breast enlargement. (2) taking too much birth control pills. (3) breast massage with hormone-containing massage milk. (4) Grumpy, or good-tempered people who are angry because they cannot adjust their mood for some reason. (5) Individuals with high estrogen levels. From the above, it can be seen that many aspects can greatly reduce the occurrence and progress of breast enlargement if they are attended to.