Soybean milk contains soy isoflavones, which are plant hormones that can affect the level of hormones in the body and lead to an increase in nodules and enlargement, and this claim is unfounded. The content of soy isoflavones in soy is very small, the impact on the human body is negligible, soy is rich in plant protein, a variety of trace elements and vitamins, the human body has a good nutritional effect, soy products are indispensable nutrients, usually can be used normally. With breast nodules, pay attention to drugs containing hormones, such as birth control pills, and try to go to the hospital for examination to exclude malignant tumors, which can be surgically removed if necessary. Mood has a greater impact on the breast, pay attention to keep a happy mood, do not be grumpy, found breast nodules should be treated in a timely manner.