With the arrival of puberty, women appear once a month vaginal bleeding, medically known as “menstruation”, is due to the female ovaries cyclic secretion of hormones caused by the endometrium cyclic shedding caused by the majority of girls from childhood know “menstruation” is normal! Most girls know from childhood that menstruation is normal, and that the many discomforts associated with menstruation are “normal”, and that there is no need to go to the hospital. However, no one knows about the periodicity of the breast, or most people do not know, coupled with the increase in the incidence of breast cancer, seriously affecting the physical and mental health of the majority of women, people do not learn the normal changes in the breast from the formal way, so it is to talk about the color of cancer, talk about the color of breast pain, and the physiological “periodic breast pain” and the so-called “breast pain” and the so-called “breast pain”. and the so-called “breast hyperplasia”; and the relationship between “breast hyperplasia” and “breast cancer” has become mysterious, from the heart level, and greatly exacerbated the degree of breast pain. The degree of breast pain is greatly aggravated from the heart level, so that the person concerned almost into a dead end, seeking medical advice everywhere, want to eradicate this disease, it is really lamentable! Cyclic breast pain is caused by cyclic changes in the breasts. Performance in the 14 days before menstruation to start the breast into the physiological proliferation period, so the breast performance rise, pain, fall and other sensations, some 3-5 days, some 10 days or so, usually with the advent of menstruation to reduce or disappear. About 10 days after menstruation, the discomfort starts again in the next cycle. The extent of this discomfort varies from person to person until you enter menopause. Therefore, we remind you that if the breast table small cyclic pain, aggravated before menstruation, after menstruation disappears, this is a normal physiological changes, usually do not need to consult a doctor, usually do not need to take medication, and do not need to panic.