A cut is made and a small sample of the lump is removed. A minor surgery done under x-ray control in which a needle is used to take a tissue sample. This needle acts like the puncher that's used to pierce ears. Each test looks for something different. It's okay to ask your doctor or nurse why a particular test is being done on you.
Men get breast cancer, too.
Few resources specifically address men's needs, so, if you're a man, you may find you need to look for information under the women's health sections in bookstores and on the Internet.