Breast pain is a symptom of pain in the breast in the absence of specific physiological or pathological abnormalities. Almost every woman will experience breast pain at some point in her life, and it can occur during adolescence, lactation, middle age and old age. It can occur during adolescence, lactation, middle age and old age. Stress and dietary factors can cause breast pain. According to statistics, about 2/3 of the patients in breast specialist clinics are currently seen for breast pain, and 21% of them complain of severe pain. In fact, breast pressure pain about a week before menstruation is considered normal, and breast pain for more than a week is considered necessary for consultation. Depending on how much breast pain affects the patient’s normal life such as sleep, work and sex life, breast pain can be classified as mild (pain felt by touch), moderate (pain in the breast when moving) and severe (pain in the breast felt in quiet situations and affecting daily work and life to some extent, even lasting for the whole menstrual cycle). Those with severe breast pain need to be seen and treated. Depending on the natural history of breast pain and response to medication, breast pain can be classified as cyclical breast pain, non-cyclical breast pain and chest wall pain. Periodic breast pain is the most common type, accounting for approximately 67% of all breast pain, occurring at an average age of 34 years, and is named because of the distinct relationship of the pain to the menstrual cycle, with periodic episodes of pain that almost always coincide with a nodal state of the breast and premenstrual episodes of pain. Women around the time of menstruation usually experience pain in the lateral superior portion of both breasts, which spontaneously resolves in approximately 22% of individuals before menopause. Non-cyclic mastalgia, which occurs at an average age of 43 years or about 26%, is pain that worsens throughout the month or intermittently and is distinguished from cyclic mastalgia primarily by its lack of relationship to menstrual events. Also, the nodal state is not as prominent as the cyclic type, the site of pain is almost always located on one side, and medication is not effective, but nearly 50% of patients can have spontaneous relief. In addition, about 7% of chest wall pain cases include pain caused by costochondritis, external breast pain syndrome, cervical radiculopathy, or other non-breast causes.