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Mammography is an x-ray exam of the breasts to detect lumps when they’re too small to be detected by physical examination. Washington University radiologists at Barnes-Jewish Hospital use mammography to look for early signs of breast cancer. Early detection is important so breast cancer can be caught in its earliest and most curable stage.


  • Screening mammogram: This is typically an annual screening and images are taken of each breast at different angles.
  • Diagnostic mammogram: Your provider will order a diagnostic mammogram if your screening shows abnormal tissue.


  • After age 40, yearly mammogram screenings are recommended for all people assigned female at birth.
  • Women who are at increased risk of breast cancer (family, medical history, inherited genetic mutations), may need to start earlier. Check with your primary care physician as early as your 20s.
  • Women with dense breasts.
  • Women who have not yet gone through menopause, or who have been in menopause less than one year.


Our mobile mammography van offers quality screenings from 8 a.m. to 4 p.m. at various St. Louis locations and beyond. See our list of upcoming public appointment days. To make an appointment, call 314.747.7222 or 800.600.3606, or fill out an online appointment request form.


To schedule a mammogram, or for more information, call 314.454.7500.

If you do not have insurance and would like more information on special screening programs, please call Siteman Cancer Center at 314.747.7222 or toll-free 800.600.3606.

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Find a doctor or make an appointment: 866.867.3627
General Information: 314.747.3000
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St. Louis, MO 63110
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