The incidence of breast cancer in China has shown a rapid rise in recent years. And what should we do about it? Finding a breast lump requires medical attention. But did you know that healthy women need to do breast screening? We need to do breast screening! First, what is breast screening? Breast cancer screening is the screening of asymptomatic women for early detection, early diagnosis, and early treatment through effective, simple, and cost-effective breast examinations. The ultimate goal is to reduce the mortality rate of breast cancer in the population. The ultimate goal is to reduce the mortality rate of breast cancer in the population, which is often referred to as physical examination. When should I start breast screening? It is generally recommended to start at the age of 40, but for some high-risk groups of breast cancer, the starting age of screening can be advanced to 20 years old. For the general population, 20-39 years old can not have physical examination without special circumstances, 10-69 years old can have physical examination once a year, and above 70 years old can have physical examination once every two years. What are the methods of breast cancer screening? 1. Mammography (Mammogram): The role of mammography in reducing breast cancer mortality in women over 40 years old has been recognized by most scholars at home and abroad, and mammography screening is highly accurate for Asian women over 40 years old. However, mammography has poor penetration into young, dense breast tissue and is not recommended for women under 40 years of age who do not have a clear risk factor for breast cancer or have no abnormalities on physical examination. Routine mammography has a low radiation dose and is not harmful to women’s health, but normal women do not need to undergo repeated mammography for a short period of time. 2. Breast Clinical Physical Examination: The effectiveness of breast clinical physical examination alone as a method of breast cancer screening is not certain, and there is no evidence that this method can increase the rate of early diagnosis of breast cancer and reduce the mortality rate. However, it is complementary to other examinations. Breast self-examination: Breast self-examination cannot improve the detection rate of early diagnosis of breast cancer and reduce the mortality rate. However, for the current situation of medical treatment in China, I personally recommend self-examination once a month. Breast ultrasonography: China has a high proportion of pre-menopausal patients with relatively dense mammary glands, so ultrasonography can be used as an auxiliary means of breast screening. The sensitivity of mammography is related to the density of breast imaging, with the sensitivity of fatty breasts as high as 98% and dense breasts as low as 48%. On the other hand, Chinese women’s breasts are smaller than those in the West, but the glandular tissue is dense. With the advancement of ultrasound technology, ultrasound examination is more desirable. However, ultrasonography is limited by the skill level of the operator. 5, breast magnetic resonance (MRI) examination: MRI examination can be used as a mammography, breast clinical physical examination or breast ultrasound examination found in the suspected cases of supplemental examination measures. It has been reported that the sensitivity of breast MRI scanning in monitoring breast cancer is as high as 94%-100%, and the specificity is 37%-97%, but it is expensive, requires intravenous injection of gadopentetine glucosamine and other enhancers, and has contraindications that include pacemakers, aortic coarctation, and so on. What should be done to screen people with high risk of breast cancer? It is recommended to screen people with high risk of breast cancer in advance (25-40 years old), once a year, in addition to clinical physical examination, color ultrasound and mammography, new imaging means such as MRI can also be applied. V. What are the high-risk groups of breast cancer? 1.People with obvious genetic predisposition to breast cancer 2.Patients with previous moderate to severe atypical hyperplasia of breast ducts or lobules or lobular carcinoma in situ. 3.Previous chest radiotherapy.