Decades ago, it was thought that nuns. Sister. Celibate women or women who have never had children in their lives. Women who have not breast-fed are the high incidence of breast cancer. Nowadays, with the development of economy and improvement of living standard, the incidence of breast cancer is also increasing year by year, and the incidence of breast cancer in our province is increasing at an average rate of about 3%, and the trend is younger, especially the incidence of breast cancer among women aged 25 ~ 35 years old has increased by 10.7% in 10 years, with nearly 6000 new cases of breast cancer each year. The occurrence of breast cancer is often related to the following factors: 1. Marital and menstrual factors: age of menarche is less than 12 years old or age of menopause is more than 55 years old. The age of first birth is older than 35 years. Not breastfeeding after childbirth or unmarried. Those who have not had children. 2.Women with benign breast diseases: not detected in time or not under regular systematic treatment. 3.Hereditary factors: Women with family history of breast cancer, especially those whose mother or sisters have breast cancer, are more likely to have breast cancer than others by about 30%, and daughters have breast cancer at an earlier age than their mothers by about 10 years. Family history of other tumors, such as ovarian cancer. Colon cancer. Lung cancer also increases the risk of breast cancer. 4. Lifestyle factors: smoking and drinking habits and high-fat diet. Low fiber diet, or irregular life, long time obsession with night life. 5.Spiritual factors: women who are in long-term depression or suddenly suffer from serious mental trauma and high psychological stress. 6, women who use exogenous hormones: women who commonly use estrogen substitutes or often take estrogen-containing health products after menopause. 7, women who live or work in an environment with electromagnetic radiation for a long time. 8, women who have had multiple abortions. 9, obese women. 10, women with chronic constipation. 11.Women who have breast implants. 12.Women who have breast cancer in one breast, the risk of cancer in the opposite breast is also increasing. Women in the above group should go to regular breast clinic for regular checkups, including palpation, breast ultrasound, x-ray mammogram, regular examination, early detection and early treatment, and advocate prevention of breast cancer, as Chinese medicine says “not treating the disease before it happens” to nip cancer in the bud.