If the symptoms of breast pain are regular pains that occur just a few days or a week before your period, it is most likely caused by breast enlargement. If the breast pain is during breastfeeding, it may be mastitis. Most people have breast pain caused by breast enlargement. However, it is recommended to go to the hospital for a formal diagnosis by a doctor, such as ultrasound and mammography, to exclude possible diseases in the breasts. If a patient has breast pain caused by breast enlargement, it can mostly be relieved on its own by calming down, eating and living regularly, and eating less spicy, stimulating, and oily food; if not, most of them can be cured by taking Chinese medicine for breast enlargement. For the pain caused by mastitis, the cause of mastitis must be removed in order to relieve, that is, if it is caused by bacteria to carry out antibiotic treatment, when the inflammation of the mammary gland improves, the pain will disappear naturally.