If your nipples hurt when you touch them in the past few days, it may be due to the roughness of the material of your intimate apparel, which rubs your nipples for a long time and causes the skin to be sensitive, red and swollen, or is about to break down and cause tenderness. In addition, not only the breast swelling and pain during menstruation can cause nipple pain, but also breastfeeding women due to insufficient milk during breastfeeding or incorrect breastfeeding posture, so that the baby can not draw enough milk, more forceful sucking or biting the nipple can also cause pain. In addition, related disease factors may also cause nipple pain at the touch. Common causes and treatments 1, nipple inflammation: on the one hand, trauma can lead to nipple breakage and infection, causing nipple inflammation. On the other hand, the hormone level of breastfeeding female body influence, can make the nipple part of the skin becomes thin, fragile, breastfeeding baby sucking easily lead to nipple cracks. If the nipple is not cleaned in time, it may cause bacterial infection and form nipple inflammation, which is characterized by redness, swelling and pain in the nipple. At the same time, when blood or other secretions oozing from the nipple area crusts over, it will cause increased pain. Patients should stop breastfeeding on the affected side, empty the breast milk, can follow the doctor’s instructions in the local application of erythromycin ointment and other antibiotic ointment treatment, if secondary abscess, generally need surgical treatment; 2, mastitis: due to poor breast hygiene, or nipple chaffing, the infection is not completely cured, then the bacterial retrograde infection, the condition of nipple inflammation aggravated, but also cause mastitis, resulting in the patient to have a fever, chills, swelling and pain in the breasts and other symptoms, the patient. At the same time, the nipple and the whole breast have tenderness. It is recommended that patients maintain local cleanliness, try to empty the breast milk, can also be relieved by local hot compresses, if it can not be relieved, should go to the hospital in a timely manner; 3, other diseases: including breast hyperplasia, cystic breast, breast cancer, and other common mammary gland diseases caused by breast swelling and pain, radiating to the nipple area, resulting in nipple pain when touching the phenomenon. If the patient has nipple tenderness for a long time and it is accompanied by breast swelling and pain, nipple overflow, etc., he/she should consult a doctor in time, and the cause of the disease should be clarified after ultrasonography, pathology biopsy, MRI and other examinations. Pregnant or breastfeeding patients should be under the guidance of a doctor to use medication, to avoid the impact on the baby; 4, other: male patients with symptoms of nipple pain at the touch of the nipple, may be related to hormonal abnormalities in the body caused by mammary gland hyperplasia, can be accompanied by obesity, alopecia, and other symptoms of endocrine abnormality; there are a small number of patients who may be experiencing inflammation of the mammary glands, resulting in localized redness, swelling, and pain, and it is recommended that you go to the hospital in time to see a doctor. Patients should pay attention to ensure that the breast area is clean and hygienic during the treatment period, wash frequently, and avoid external stimulation so as not to aggravate the pain and discomfort.