human
My doctor says that I have to have a mammogram soon, but I don't know what that is. Can you help me understand what it is and why I need to have it?
assistant
A mammogram is an X-ray of the breast. It's used to detect any abnormalities in the breast tissue. Mammograms are usually recommended for women over 40 who have had breast cancer or a strong family history of breast cancer. They can also be used to screen for other types of breast cancer, such as DCIS (ductal carcinoma in situ).