Breast cancer has risen to be the first malignant tumor among women in some large and medium-sized cities, and the incidence rate is increasing year by year, and the age of incidence is also showing a trend of gradual rejuvenation in China. What’s more, the authors gradually feel that male breast cancer is also increasing year by year in their clinical work in recent years. The root cause is the high level of estrogen. However, the clinic often see patients taking estrogen-containing health care products, while coming to see the breast disease, so the author is deeply convinced that a variety of estrogen-containing health care products are harmful, it is necessary to organize the reissue of this article, really cause everyone to pay attention to. Estrogen is a very important hormone in the female body, it is a class of steroid compounds with a wide range of biological activities, it not only promotes and maintains the physiological role of the female reproductive organs and secondary sex characteristics, and on the endocrine system, the cardiovascular system, the body’s metabolism, the growth and maturation of the bones, the skin, and so on, have a significant impact on all aspects. It can moisturize the skin, brighten the hair, and promote the development and enlargement of breasts, reflecting the beautiful body curves. Therefore, estrogen is a hormone essential for women to maintain youth and female secondary characteristics. However, do not misunderstand ah, the above is also a large number of high-level cosmetics and women’s health products advertisements out of context in the part, everything must have two sides, too much, today the author sings a counterpoint to everyone, to the estrogen this double-edged sword of the blade to blunt a little. Breast cancer causes, estrogen (whether endogenous or exogenous) stimulation accounted for a very large proportion of the breast tissue for a long time exposed to high levels of estrogen stimulation, the rate of breast cancer will be significantly higher. One of the pioneers in breast oncology in the United States summed it up in a statement that the author felt was very succinct: the more menstruation a woman experiences throughout her life, the higher her risk of developing breast cancer. This is because every menstrual cycle, breast tissue will be with various hormonal fluctuations and changes in cell and mesenchymal hyperplasia and natural recovery, if the proliferation process of breast cells is too frequent, the recurrence will be incomplete. This sentence also brings out many risk factors for breast cancer: the age of menarche is less than or equal to 13 years old (the author feels that in recent years, the age of menarche of urban girls is significantly earlier than before, which has a great deal to do with the intake of excessive estrogen), the age of menopause is greater than or equal to 55 years old (some women at the age of forty-seven or eighty-eight years old began to have disorders of menstruation and menopausal tendency, but they are reluctant to do so, and they also have to eat all kinds of health care products for delaying the aging process. Delay menstruation, in fact, estrogen is playing a key role), short menstrual cycle of women (experience more menstruation, estrogen secretion exuberant), women who have not given birth (pregnancy does not menstruation), not breastfeeding women or breastfeeding period is too short women (breastfeeding a lot of women do not menstruation, estrogen is relatively low level). The above refers to endogenous estrogen stimulation. So what are exogenous estrogens? There are too many, from the children’s period of growth and development of the nutrients, to the teenage period of a variety of academic help to promote brain development of the nutrients, many parents in order to the child’s body, in order to the child’s education, will be more or less love flood, do not know that this to the child’s health buried how much hidden danger. To make an analogy: the application of farmyard manure and chemical fertilizers to promote the growth of crops, which green organic? There are also some beauty ladies in order to slow down the aging process, to maintain youth, oral estrogen-containing health products, external estrogen-containing breast enhancement beauty products. Some product advertisements claim to ensure that estrogen is not added, but in fact, the author dares to tell you, as long as there is the effect of the absolute addition of estrogen (only a change of armor), no effect is basically a “flimsy product”, so that: there is a waste of money to buy high-priced health care products, as well as spending money to buy some fruits and vegetables to eat to the health and safety. A large part of the source of exogenous estrogen comes from various types of health products. Then, some people will say, before and after menopause is very uncomfortable, a lot of problems, after using estrogen more comfortable, do not know, so to their own breast health buried a great hidden danger. The main cause of menopause syndrome is the failure of ovarian function, estrogen synthesis and secretion is reduced, will be accompanied by a number of problems, such as: hair loss, dry skin, osteoporosis, sagging breasts, insomnia, emotional instability and so on. But these are all normal natural processes, most people can adjust themselves after a period of time. What’s more, nowadays, the living standard is high, the diet structure has also changed a lot, the raw materials for synthesizing estrogen and foods containing estrogen are usually enough intake, and serious menopausal syndrome patients are not common in the clinic. If the symptoms are indeed obvious, seriously affecting work and life, it is advisable to check hormone levels and apply estrogen supplementation therapy for a short period of time after comprehensive evaluation in multiple departments such as gynecology, endocrinology, and mammography, and it is not recommended to be self-reliant and to seek out all sorts of health gurus! Then someone will ask, since estrogen is beneficial and harmful, balance is best, how to find the balance? What can I eat more of to prevent these problems? The author honestly, it is too difficult, because individual differences, genetics, lifestyle habits and so on and so forth, there is no one-size-fits-all approach, can only say that a balanced diet, meat and vegetables, relaxation, teenage years, less nutritional supplements, participate in more physical activity, reproductive age after giving birth to breastfeeding, and the time to be enough. Middle and old age don’t believe the rumors (so and so master food therapy method, often eat what will stay young forever), don’t pursue the physical old age, appropriate physical exercise, so that the most healthy. Editor’s conclusion: the onset of breast cancer and estrogen is closely related to the elevation of estrogen, estrogen is also an important hormone to maintain the female secondary sex characteristics, is a real double-edged sword, the body synthesizes and secretes as much as a natural process, in the absence of serious symptoms, there is no need to take the risk of getting a tumor to supplement the estrogen, don’t lose a lot of money because of small losses.