Symptoms include nipple chafing and cracking, which may cause breast tissue to become infected and inflamed. Breast-feedingīreast-feeding can cause a condition called mastitis, which is relatively common. This is usually temporary and will likely resolve on its own. Strong and forceful friction during sexual activity, including intense oral stimulation, can cause nipples to be tender and sore. They can also cause the nipple to appear red or chapped. Soaps, lotions, and laundry detergents can cause allergic reactions as well as itchiness. Sensitivities to weather changes and certain fabrics, including wool, can cause pain and itching in the nipples. The nipples are among the most sensitive parts of the body and will react differently to stimuli. Long-distance runners who exercise excessively and surfers who do not wear rash guards may experience similar symptoms. This type of friction can cause soreness, dryness, irritation, and bleeding. This is especially true for women who exercise without a sports bra, or with a poorly fitting sports bra. Share on Pinterest Nipple pain is seldom a symptom of a serious condition.Įxercise can cause nipple friction and pain.