What to Expect During a Mammogram
A step-by-step guide to help you prepare for your mammogram, understand what happens during the exam, and know what comes after.
Before Your Appointment
A little preparation can make your mammogram experience smoother and more comfortable:
Scheduling Tips
- Timing matters: If you menstruate, schedule your mammogram for 1-2 weeks after your period when breasts are typically less tender
- First-timers: Allow extra time (45-60 minutes) for paperwork and questions
- New facility? Request your prior mammogram images be sent ahead of time for comparison
The Day Before
- Gather any prior mammogram records if you have them
- Write down questions you want to ask
- Confirm your appointment time and facility location
The Morning Of
- Skip deodorant, antiperspirant, powder, and lotion on your chest, underarms, and breasts (they can appear as white spots on images)
- Wear a two-piece outfit so you only need to undress from the waist up
- Remove necklaces and leave jewelry at home
- Consider taking over-the-counter pain medication (ibuprofen, acetaminophen) 30-60 minutes before if you're worried about discomfort
💡 Forgot and wore deodorant?
Don't worry—most facilities have wipes to remove it. Just let your technologist know.
During the Exam
Here's what happens from the moment you arrive:
- Check in and change — You'll complete brief paperwork, then undress from the waist up in a private changing area. A gown or cape will be provided.
- Meet your technologist — A trained mammography technologist (usually female) will guide you through the process and answer questions.
- Positioning — You'll stand in front of the mammography machine. The technologist will place your breast on a flat platform.
- Compression — A clear plastic paddle presses down on your breast to spread the tissue evenly. This may be uncomfortable but only lasts 10-15 seconds per image.
- Hold still — You'll be asked to hold your breath briefly while the X-ray is taken.
- Repeat — The process is repeated for different views (typically from above and from the side) and then for the other breast.
- Review — The technologist checks that the images are clear. Occasionally, additional views are needed.
Total time: The entire appointment typically takes 20-30 minutes. The actual imaging takes only about 10 minutes.
⚠️ About the Compression
Breast compression is necessary for clear images and to reduce radiation dose, but it can be uncomfortable. If the pressure is unbearable, tell your technologist—they can adjust. Remember: it only lasts a few seconds per image.
After the Exam
Immediately After
- You can get dressed and resume all normal activities right away
- Some women experience mild breast tenderness for a day or two
- No restrictions on driving, exercise, or work
Getting Your Results
- Results are typically available within 1-2 weeks
- You'll receive a written summary by mail or patient portal
- Your results will include your breast density category (A through D)
- If you don't hear back within 2 weeks, call the facility
If You're Called Back
About 10-12% of women are called back for additional imaging. This is usually for:
- Unclear images that need to be retaken
- Areas that need closer examination with additional views
- Comparison with prior mammograms
Important: A callback does NOT mean you have cancer. Fewer than 10% of callbacks result in a cancer diagnosis. Most are false alarms or benign findings.
📋 Keep Records
Save copies of your mammogram results and know which facility stores your images. If you switch providers, you can request your images be transferred.
Tips for a More Comfortable Experience
- Communicate — Tell your technologist about any concerns, prior biopsies, or areas of tenderness
- Breathe — Take slow, deep breaths during compression to help you relax
- Limit caffeine — Some women find reducing caffeine before their appointment helps with breast tenderness
- Bring a friend — If you're anxious, having someone in the waiting room can help
- Ask questions — Technologists are happy to explain what they're doing and why