Breast pain is a common occurrence. Most women have breast pain at one time or another, often more in one breast than the other. Sometimes the pain is only in one breast, and frequently in only one area of one breast. Breast pain is a common complaint and most likely not related to a serious concern. Sometimes pain seems to be radiating from the breast, when actually it’s really from a nearby anatomic location, such as the shoulder, neck or chest wall (usually caused by arthritis). Women may suffer from costochondritis and this may appear to be breast related pain. For this reason the mammogram is often normal when breast pain is present.