If the nipple hurts when touched, that is, if the nipple is painful to touch, you should first consider whether it is caused by trauma, such as squeezing or impact, which may lead to soft tissue contusions of the nipple, which are more sensitive when touched and may cause painful symptoms. This can usually be relieved in the short term by keeping the area clean and dry. If the influence of external factors is excluded, nipple tenderness may be related to the following factors: i. Physiological factors patient underwear is not suitable or clothing material is hard, etc., can make the nipple become sensitive after friction, it will appear the performance of tenderness. In the case of female patients, it may also be related to special periods, such as pre-menstruation, pregnancy and puberty, which are affected by changes in the level of hormone secretion, the nipples may become sensitive and show symptoms of tenderness. Second, pathological factors 1, nipple cracking: breastfeeding women to the baby when nursing may be due to incorrect nursing posture, improper use of breast pumps and other factors, resulting in nipples being bitten by the baby, the symptoms of nipple cracking. When touching is performed, pain may occur. If the condition persists, without keeping the area clean and dry, it may also lead to inflammation of the nipple, which may also cause pain when touched; 2. Pathological mastopexy: due to interstitial hyperplasia and incomplete replenishment of the mammary gland leading to disruption of the normal structure of the mammary gland, when patients have mastopexy, it may lead to changes in estrogen and progesterone in the body, and the nipple becomes sensitive, causing pain when touched, which usually The symptoms can improve or disappear after the lesion is treated; 3. Nippitis: If the feeding method is improper during breastfeeding, or if you do not pay attention to the clean care of the breast area, after the nipple is damaged or cracked, due to the invasion of bacteria into the lymphatic vessels and blood vessels, resulting in nippitis, which can cause redness and swelling of the nipple, which can cause pain when touched, and the crack can have yellow discharge, which can also cause bleeding when the crack is ruptured; 4. Mastitis: Infection by microorganisms together The inflammation of breast tissue, mostly manifested as symptoms of redness, swelling, heat and pain, breast swelling and pain, increased skin temperature, and pain when the nipple is touched. Due to individual differences, patients may also have other causes, such as breast cancer, which can be accompanied by orange peel-like changes in the skin of the breast. In men, the symptoms of nipple pain when touched may be due to hormonal abnormalities, which may be accompanied by obesity and hair loss, and may also be seen in patients with diabetes. If a patient has symptoms of nipple pain when touched, it is recommended to actively go to a hospital mammography department for consultation and treatment to avoid delaying treatment. In daily life, attention should be paid to the clean and dry nipple area, and medication can be selected according to the specific situation under the guidance of a doctor. Try to choose appropriate underwear and avoid overwork and tension, etc., to facilitate the recovery of the condition.