The nipple is painful to touch and is a common condition in breast diseases. Consider the following possibilities: 1. pain caused by inflammation in the nipple area; 2. consider that the nipple area is broken, cracked, red, swollen and fissured, and there is pain when touched; 3. consider that the patient is suffering from breast hyperplasia, and this disease will have hard lumps in the breast and breast pain, which may be simple breast pain or may spread to the The pain may be simple breast pain, or it may be pain around the whole breast, especially before the menstrual period, and the symptoms will be relieved after the menstrual period; 4, it may be due to dilated breast ducts or mastitis or breast cancer, and the patient is advised to go to the relevant departments of the hospital for further diagnosis and treatment according to the examination results.