Hard lumps in a man’s breasts are not normal, and tests need to be done to clarify the nature of the lumps and to confirm whether they are benign or malignant nodules. Men also have breasts, and there is breast tissue inside the breasts, under normal circumstances will not feel the hard lumps, breasts will not appear sensitive and painful phenomena. The presence of hard lumps in the breasts may be related to breast hyperplasia, breast cancer and other diseases, which need to be examined to confirm the diagnosis. A breast ultrasound or X-ray will be done to determine the location, size, calcification, blood flow, etc., and to grade the lump. If the breast grading has reached grade 4 or above, there is a possibility of malignancy, and surgical excision needs to be performed according to the situation, followed by breast biopsy to clarify whether it is a malignant nodule. To summarize, men are advised to seek medical treatment in time and do systematic examination to find out the cause of the disease.