Male breasts can squeeze out fluid to may be physiological reasons, but also may be the cause of disease, such as: nipple inflammation, gynecomastia, breast cancer and so on. 1. Physiological reasons: such as men’s diet unhygienic, late at night, tired, nervous, etc., will cause endocrine abnormalities in the body, resulting in gynecomastia can be squeezed out of the fluid, need to be adjusted through dietary adjustments, rest, exercise and so on. 2. Disease causes. (1) nipple inflammation: male nipple if received trauma caused by breakage or see, cracking and other phenomena, may lead to pathogenic bacteria invasion into the body, causing male breast extrusion of white liquid, and accompanied by local pain, swelling symptoms. (2) Gynecomastia: the symptoms are unilateral or bilateral breast enlargement, some patients have nipple or areola enlargement with swelling and pain, and a few patients will have white nipple secretion overflow. (3) Breast cancer: Some male breast cancer patients regret to have nipple overflow, rupture and other uncomfortable symptoms, which will lead to white secretion from male breasts. At the same time, male breast hyperplasia, dilated milk ducts, mastitis will also appear in the breast extrusion liquid performance. If a man finds that his breasts can be squeezed out, it is recommended that he should go to the hospital in time to have a checkup, to treat the cause of the disease, and not to blindly use medication on his own.