Before 1980s, there were few breast cancer patients in China, mostly elderly women over 60 years old. Nowadays, the incidence of breast cancer ranks first among female malignant tumors. In the past 10 years, there were about 200,000 new breast cancer patients in China every year, and the onset age was mainly 35-50 years old, showing a trend of rejuvenation. What is the reason for the high incidence of breast cancer? Professor Henry Zheng from the Multidisciplinary Treatment Group of Breast Cancer in West China Hospital believes that the high incidence of modern breast cancer is related to the estrogen environment, which is closely related to our diet. Pay attention to foods containing hormones. Many people know that "the disease comes from the mouth", but few people know that the high incidence of breast cancer is closely related to modern diet. Modern medical research has proved that the occurrence of breast cancer is related to genetic factors, psychological stress, high-fat diet, ionizing radiation, long-term estrogen stimulation and other factors. Among them, estrogen has the closest relationship with the incidence of breast cancer, because breast tissue is the "target" tissue of estrogen. Professor Henry Zheng, a breast expert, pointed out that modern people's food includes meat, eggs, milk, vegetables and fruits. Many of these foods have been found to contain estrogen or estrogen-like ingredients. For example, there are often feed residues in animal foods, and pesticide and growth agent residues in plant foods. In this way, we unconsciously eat these estrogen ingredients every day. A large amount of estrogen enters breast tissue, which will cause various reactions of breast tissue, including hyperplasia of breast tissue. It may eventually lead to breast cancer. Now we live in the environment of estrogen, which is called environmental estrogen. They can interfere with the normal endocrine function of animals and human beings and bring harm to human health, especially human reproduction and cancer. Some experts have made such a summary of environmental estrogen: it is everywhere but without a trace; Knowing that it is harmful but inevitable; There are many kinds, but they are all uncontrollable. Healthy Eating Network: foodwang.com avoids long-term mental stress, has a regular life, and gets married and gives birth to breast cancer at the right time. How to prevent it? Many women may know that breast cancer prevention should pay attention to self-examination, but if "whether the lump is touched or not, whether it is painful" is the standard of treatment, it will seriously delay treatment. Because there can be no clinical manifestations in the early stage of breast cancer, high-risk groups of breast cancer such as older mature women should go to the hospital for screening regularly. According to Professor Henry Zheng from West China Hospital, early prevention and screening are very important for female patients to prevent and treat breast cancer. Breast pain is not a unique symptom of breast cancer, but also a breast disease such as hyperplasia of mammary glands. Having a lump but no pain does not mean that breast cancer can be ruled out. There may be no clinical manifestations in the early stage of breast cancer, and high-risk groups should go to the hospital regularly to find out if they are sick in time. These high-risk groups include family history of breast cancer; /kloc-Menstruation or menstrual period more than 40 years before 0/2 years old; Overeating foods with high sugar, high fat and low fiber, obesity or diabetes; Long-term use of hormones or hormone replacement therapy; Children born after the age of 30 are unmarried, single, super-married or short-married over the age of 40; Have a history of benign breast diseases; Have a history of radiation and a bad lifestyle; A large number of cosmetics and health products containing estrogen are used. At the same time, experts also stressed that the focus of breast cancer prevention and treatment is early prevention. For female friends, regular life, timely marriage and childbearing, adequate breastfeeding and regular breast cancer examination are the most effective preventive measures. In addition to avoiding long-term mental stress, mood swings, lack of sleep and other risk factors, it is also necessary to avoid the risk factors that lead to breast cancer in the diet. Long-term adherence to one or more outdoor aerobic exercises, such as jogging, cycling, Tai Chi, brisk walking and mountain climbing, can also reduce the risk of breast cancer.