After menstruation stops, if there are symptoms of breast pain and swelling, one should first consider whether it is related to pregnancy, as hormonal changes during pregnancy often lead to such symptoms. Some people experience breast pain and swelling due to ovulation, which is a typical symptom for many before menstruation. Occasionally, ovulation may be delayed, thus delaying the symptoms of breast pain and swelling. Others might experience these symptoms in relation to factors such as excessive staying up late, high stress, or considerable pressure. It is common to undergo hormonal tests and breast ultrasound examinations in such cases.