I have severe breast enlargement and I am afraid that it may become a disease. Will breast cancer develop if breast enlargement does not heal for a long time?　　Dr. Feng Shuitu of the Department of Oncology of Xiamen Second Hospital: Ten groups of people should be especially alert to the possibility of breast cancer: 1. Although not every case of breast enlargement will become malignant, those who are older, have a longer history, have larger lumps, or have lumps that are not obviously related to menstruation are prone to malignant transformation; 2. Research proves that the abuse of estrogen-containing health products may lead to breast cancer. 5, long-term exposure to various kinds of radiation (such as repeated radiation examinations, computers, cell phones, etc.); 6, celibacy without children or infertility after marriage; 7, first menstruation or late menopause before the age of 13; 8, not breastfeeding or breastfeeding for too long; 9, obesity or excessive fat intake; 10, mental depression, frequent anger and bad mood.