Breast pain causes in women are commonly linked to hormonal fluctuations during menstruation, pregnancy, or menopause. A frequent breast pain reason is fibrocystic breast changes, which can cause tenderness and swelling. Other breast pain causes in women include infections, injury, or wearing tight or ill-fitting bras. Lifestyle factors like stress, poor diet, and excessive caffeine intake may also act as a breast pain reason. In some cases, underlying medical conditions require attention. Consulting an expert like Dr. Rajeev Agarwal helps identify the exact breast pain reason and ensures proper diagnosis and effective treatment.