Itchy male nipples may be caused by diseases, environmental factors and lifestyle. 1. Disease: Itchy nipple symptoms are caused by localized eczema on the skin of the male breast. Neurodermatitis can also cause nipple itching, which is severe and persistent. Inflammatory breast cancer and eczema-like breast cancer can also cause nipple itching. 2. Environmental factors: If a man is allergic to dyes, silk fabrics and fluffy fabrics, excessive rubbing of clothes on the male nipples can also cause nipple itching. 3. Lifestyle: Body friction and itchy nipples can be caused due to men’s bad lifestyle habits such as not changing personal clothes often, bathing too often, and skin peeling. If men have itchy nipples, they should go to the hospital under the guidance of the doctor to clarify the cause of standardized treatment. Attention should be paid to cleaning the nipples in daily life, but the power and frequency of cleaning should not be excessive. Attention should also be paid to wearing loose and breathable clothes to prevent excessive nipple friction.