A painful irritation of the sensitive skin on a nipple that is usually caused by chafing from a sports bra during high-impact exercise, especially jogging or running. Women can help prevent jogger’s nipple by wearing sports bras that are less likely to cause irritation. Synthetic fabrics do not stay as wet as cotton and are less likely to cause chafing from sweat. Sports bras with flat or covered seams are less abrasive against the nipples. Petroleum jelly or talcum powder may be applied to the area to help protect it. Specialty running stores often carry non-staining lubricating products that are made for treating jogger’s nipple. The donut-shaped cushions made to treat corns on the feet offer good nipple protection for joggers and peel off easily after running or other high-impact activities.