What is the mammogram typically used for?

Breast cancer: Mammogram is used to detect breast cancer.

Screen breast cancer: Mammogram is an xray technique used to evaluate the breast tissue and ascertain that it's appearance is normal. It is useful to detect very early changes in the tissues that are consistent with cancer of the breast. This changes are not usually palpable by the patient or the doctor on routine exams.

2 main purposes: Their are two main uses for mammography: the early detection of breast cancer in asymptomatic women(screening mammo), and to further evaluate a lump or other symptom(diagnostic mammo).