The age distribution of breast examinations should be stepped in terms of choosing the appropriate means of examination. Women should begin self-examinations at age 14 and seek immediate medical attention if a lump is detected. After the age of 20, women should have an annual color ultrasound in addition to self-examination. After the age of 30, women should have a color ultrasound once every six months in addition to self-examination. Blood tests for CA153 and other tumor indicators are optional. After the age of 35 or 40, women should have color B-ultrasound once every six months and mammogram once a year in addition to self-examination. Ultrasound and mammography have advantages and disadvantages, and cannot be replaced by each other. There is no such thing as the best, only the most appropriate. Each patient’s breast condition is different and needs to be selected individually. The use of infrared light for breast examination is opposed. The best time for examination: three to seven days after menstruation is cleared is the best time for examination. However, as long as it is not during PMS, the examination is still possible.