Breast swelling and pain 10-15 days before menstruation is usually caused by estrogen stimulation, usually after the onset of menstruation, the symptoms will be relieved and can not be treated. Generally, breast swelling and pain will occur before and after menstruation, due to changes in estrogen, or fluctuations in hormone levels during ovulation, breast swelling and pain, which are normal physiological phenomena and do not require treatment. Patients should pay attention to rest and avoid staying up late to prevent and reduce the occurrence of symptoms. However, if you have breast swelling and pain even in normal times, it is recommended to go to the hospital for examination in time. If breast enlargement causes breast swelling and pain, it is recommended to take medication under doctor’s guidance, such as anti-inflammatory pills, breast fetish elimination, etc., to maintain a comfortable mood and avoid anger. It is recommended that patients pay attention to the mental state before and after menstruation, do not be too nervous, too much pressure, stay up all night and labor, etc., pay attention to regulating lifestyle habits. Keep a light diet, avoid spicy stimulation, greasy food, eat more fresh vegetables and fruits.