Emphasis on male breast development disorder Clinically, we often encounter male patients who come to see the doctor because of breast enlargement, lumps, and pain, and they often ask the same question: Can men also suffer from breast diseases? Can men also suffer from breast cancer? The answer is yes. Men can also suffer from breast disease, and it should not be wrongly assumed that this type of disease is exclusive to women. However, the incidence rate of men is much lower than that of women, especially the incidence rate of male breast cancer is lower than that of other malignant tumors. It accounts for 0.2% to 1.5% of all tumors in men and about 1% of breast cancer. Most of adult-onset gynecomastia is secondary to other diseases. Endocrine diseases (testicular diseases, adrenal diseases, thyroid diseases, etc.), liver diseases, prostate hypertrophy, lymphatic system diseases, and oral estrogen can also lead to adult-onset gynecomastia. People who consume excessive amounts of livestock and poultry meat fattened with estrogen-containing additives ingest too much estrogen orally. In patients with cirrhosis, the body’s ability to inactivate estrogen is reduced. In patients with testicular inflammation and dysplasia, the body’s androgen secretion is insufficient. Pituitary tumors, adrenocortical disease, testicular tumors and other diseases, taking estrogen to treat prostate disease will cause an imbalance in the ratio of estrogen and androgen. Touch the underside of the nipple and areola with your fingertips, and seek medical attention promptly if you find lumps or other abnormalities. Since the causes of breast disease in men are not exactly the same as those in women, prompt medical attention is necessary for proper treatment.