here's symptoms to look for from the Mayo Clinic
Symptoms
Knowing the signs and symptoms of breast cancer may help save your life. The earlier the disease is discovered, the more treatment options and the better chance of recovery you have.
The most common sign of breast cancer for both men and women is a lump or thickening in the breast. Often the lump is painless. Other male breast cancer symptoms include:
Skin dimpling or puckering
Development of a new retraction or indentation of the nipple
Changes in the nipple or breast skin, such as scaling or redness
Nipple discharge
Male breast cancer: Symptoms - MayoClinic.com