Male breast pain is related to breast hyperplasia, intercostal nerve pain, and breast cancer, male breasts are smaller than female breasts, and the chances of breast diseases are less, for the following reasons: 1. When violated, it will also cause pain in the chest because the intercostal nerve and 3 or 4 cervical nerves are innervated, and it will also feel pain in the chest; 3. Breast cancer: local pain is obvious and should be examined by the general surgery department of the hospital in time, the cancerous lump grows more rapidly, so it will cause local pain.