The pain on the right side of the male nipple may be due to several conditions: first, mastopexy, because the initial symptom when mastopexy occurs is breast pain, which can also be accompanied by breast lumps, overflowing discharge and poor temper. Thirdly, the pain may be due to inflammatory breast infections, especially acute mastitis and acute suppurative inflammation, where some patients will experience nipple swelling and local tenderness. Fourth, it may be due to pain caused by breast fibroids, which are abnormal growths of fibrous tissue, and a few patients will have nipple pain. Considering that the causes of pain on the right side of the male nipple are more complex, it is best to go to the breast department of the hospital for further examination.