The most common symptom of male breast cancer is a painless lump or
swelling behind the nipple. Other symptoms can include a discharge from the
nipple or a lump or thickening in the armpit. Although most men diagnosed with
breast cancer are older than 65, breast cancer can appear in younger men. For
this reason, any breast lump in an adult male is considered abnormal and should be checked out by a doctor.
How is male breast cancer diagnosed?
Most male breast cancer is diagnosed with a
biopsy to investigate a lump or thickening in the
breast or armpit. Because there is no routine screening for breast cancer and a
breast lump does not usually cause pain, sometimes breast cancer isn't
discovered until it has spread to another area of the body and is causing other
There hasn't been much research on breast cancer treatments in men, because male breast cancer is so uncommon. But breast cancer in men is similar to breast cancer in women, and some of the same treatments may be used. These include radiation therapy, chemotherapy, hormone therapy, and targeted therapy.
Chemotherapy may be used after surgery to reduce the chance that breast cancer
will come back somewhere else in the body. Most male breast cancer has estrogen and progesterone receptors and may be treated with tamoxifen.
Additional information about male breast cancer is provided by the National Cancer Institute at www.cancer.gov/cancertopics/pdq/treatment/malebreast/Patient.
What to think about
Male breast cancer is rare and makes up less than 1% of all breast cancers discovered each year.1 For this reason, many experts encourage men with
breast cancer to talk to their doctors about
clinical trials. These trials continue to look for
better ways to treat male breast cancer.
How this information was developed to help you make better health decisions.