Doctor, why do we all have mastocytosis? Doctor, can breast enlargement become cancer? Doctor, my breast hurts from time to time every month. I can’t get rid of it with any treatment. …… These are the most common questions we get in the clinic every day. In fact, in most cases, breast enlargement refers to a physiological condition of the breast. Because in adult women, breast shape and lactation function are maintained by the constant stimulation of estrogen in the body, and the estrogen in the body changes regularly every month with the menstrual cycle, so 70% of adult women experience breast swelling and pain, many of which are related to the menstrual cycle, and these are normal physiological phenomena. Li Peng, Breast and Thyroid Surgery Department, Peking University Shenzhen Hospital So, if the ultrasound of your physical examination suggests that you have breast enlargement and slight swelling and pain in your breast every month, there is no need to be afraid, all you need to do is to keep your mood happy and calm; combine work and rest, don’t stay up late; regular menstruation, if it has been irregular, you should visit the obstetrics and gynecology department; finally, regular review is most important, generally once a year under 35 years old, over 35 years old Lastly, regular review is most important, generally once a year for those under 35 years old and once every six months for those over 35. If the breast pain is more intense, affecting work and study, it is best to see a specialist, using a comprehensive approach to treatment, regular lifestyle is the basis, combined with other treatment methods, generally can receive more satisfactory results.