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  • Beating Breast Cancer

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Ann B. Barshinger Cancer Institute

Breast Cancer

Learn more about Breast Density

Cancer Institute > Breast Cancer > Screening Mammography

Screening Mammography

Mammography is an X-ray procedure used to detect breast changes. Mammograms can detect tumors that are too small for you or a health professional to feel or before symptoms develop. Mammograms can't prevent breast cancer, but they reduce the risk of dying from the disease.

Screening mammography guidelines

You should schedule an annual screening mammogram if you:

  • Are age 40 or older
  • Have no personal history of breast cancer
  • Have no signs of breast cancer, such as a lump or thickening, nipple discharge or dimpling of the skin
  • Are not pregnant or breastfeeding
  • Have not had a mammogram in the last year

If you have risk factors for breast cancer, your doctor may recommend screening mammograms before you reach age 40. If you are age 75 or older, ask your doctor whether you need a breast cancer screening.



Seven convenient locations

We are committed to making your screening experience comfortable and to providing timely and accurate results. No matter which Lancaster General Health facility you choose, a board-certified radiologist who specializes in breast imaging will review your screening mammogram.


More information about digital mammography

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