As the secondary sex characteristics of women, the mammary gland not only bears the important responsibility of feeding the next generation physiologically, but also is an important part of women’s external physical beauty and physical and mental health. Healthy and beautiful breasts build up the beautiful curves of a woman’s body and increase her confidence psychologically, which fully reflects the value of the breasts outside the physiological organ. However, due to the influence of life, environment and social factors, women’s mammary glands have become a variety of benign and malignant diseases, benign diseases in the proliferative breast diseases accounted for the first, up to 50% of women in China by its plague; malignant diseases in the breast cancer has gradually replaced the cervical cancer has become the primary killer of women’s health. Therefore, whether from the physiological point of view or from the social point of view, the protection of the mammary glands and the prevention of breast diseases have become an important task in women’s daily life and physical health care. The first and foremost part of this is to build up an informative mammary gland profile for your mammary glands. The content of the file should include the specific changes of the mammary glands in each physiological period of women as well as the internal and external factors, and the key point to be recorded is the high-risk factors leading to benign and malignant diseases of the mammary glands, which are specifically described as follows: 1. Corresponding physiological periods and the key points to be recorded: (1), puberty: the age of breast development and its sequence, the age of the first menstruation, the presence or absence of congenital malformations, and the status of the first self-check after the development of the breasts, and so on. (2) Sexual maturity: specific status of menstruation, age of marriage, fertility, breastfeeding, contraceptive measures, endocrine conditions (including endocrine organ pathology and exogenous hormone intake and treatment), pre-marital checkups, pre-pregnancy checkups and self-checks, breastfeeding history and breastfeeding measures. (3) Menopause and old age: age at menopause, history of substitution therapy, screening and self-examination. Recorded information for each period: diet and living habits, weight status, special hobbies, history of breast diseases and prognosis. 2. High risk factors: In addition to the above mentioned factors, social experience, occupation, family history, mental status, external use of drugs, other systemic diseases, exposure to radiation, etc. should be recorded. According to the above content, the establishment of the file needs to be completed by both the hospital and the individual, most of the items are designed by the hospital to carry out census or screening checklist designed by the individual to fill out the results, in which the horizontal line marked part is still the clinician’s actual diagnostic and treatment process of the detailed records. The part created by the individual focuses on the record of breast self-examination. The self-examination should pay attention to (1) with the age and the presence or absence of high-risk factors to determine the frequency and focus of self-examination. 35 years of age before the hospital can only be in the breast symptoms when the hospital, between 35 and 50 years of age need to be carried out once every 2-3 years for checkups and related examinations, after 50 years of age need to be carried out once a year for checkups and related examinations, with high-risk factors of the women checkup according to the population after 50 years of age. (2) The time is relatively fixed. Self-examination are selected on the first few days of menstruation, it is recommended that the second or third day of menstruation has just ended. (3) The standardization of self-examination techniques. Including visual examination (observation in the mirror), palpation (lying down, flat touch, with sequence). It should be noted that the content of the file is required to be added and changed at any time, and according to the file changes in the frequency of self-examination or census and focus to be modified and corrected, only in this way can ensure that the file is complete and fully reflect its value. To sum up, a complete breast file should include the following parts: general information form, checkup form of the checkup organization, medical record of hospital visit, personal self-examination record and auxiliary examination results. We hope that every woman should establish a breast file of her own, either brief or detailed, but as complete as possible, not only to facilitate the doctor’s diagnosis and treatment, but also to their own breast health or even a responsibility for the health of life.