What should I do if my menstrual period is delayed by 10 days and I have breast pain? For many women, besides dysmenorrhea, there are many discomforts during menstruation. Many young and middle-aged women experience breast swelling and pain before and after menstruation. Is this normal? Many women worry that this is a sign of a pathological change in their breasts. Generally speaking, this kind of cyclical swelling or stabbing pain that appears as the menstrual cycle approaches, and then eases or disappears after the onset of menstruation, is mostly due to changes in hormones in the body and is a normal physiological condition that does not require treatment. Of course, if the pain is severe, it is necessary to visit a hospital promptly.