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Understanding your medical notes

Mammogram results explained: what does my result mean?

A mammogram result often arrives as a short letter with a "BI-RADS" category or a request to come back for more images — wording that can be worrying without context. This guide explains the BI-RADS scale, what terms like calcifications and dense tissue mean, and why a recall rarely means cancer.

Written by Nick Lamb, PhD, medical writer MHRA-registered Class I medical device Methods validated in a peer-reviewed study Last reviewed 13 June 2026
Worth knowing up front: most mammograms are normal, and most people who are recalled for more images do not have cancer. A callback is a careful double-check, not a diagnosis — often it's simply overlapping tissue that needs a clearer view.

Get your result letter explained in plain English

Paste your mammogram result (or upload a photo, PDF, or Word file) and Patiently AI explains what it means and what happens next. Free, no account, and identifying details are removed on your device first.

Explain my result → Your text isn't stored. Available on web, iOS & Android.

The BI-RADS scale, explained

Radiologists summarise a mammogram using a standard scale called BI-RADS. It tells your doctor what was seen and what to do next:

CategoryWhat it means
0Incomplete — more images or a previous scan are needed to decide
1Normal — nothing of concern seen
2Benign — a harmless finding (e.g. a cyst or calcifications)
3Probably benign — very likely harmless; a short-interval follow-up is suggested
4Suspicious — a biopsy is usually recommended to be sure
5Highly suggestive of cancer — biopsy strongly recommended
6Known cancer — already confirmed by a previous biopsy

The large majority of screening mammograms are category 1 or 2.

Other common mammogram terms, decoded

TermWhat it means
Recall / callbackAn invitation back for more images or a closer look — usually not cancer
CalcificationsTiny calcium deposits — very common and usually benign
MicrocalcificationsSmaller calcium specks; certain patterns prompt a closer look
MassAn area with shape and edges; can be a cyst or other finding
Dense breast tissueMore glandular/fibrous than fatty tissue — common and normal
AsymmetryAn area that differs between the two sides; often benign
Well-definedClear, smooth edges — often a reassuring feature
No significant abnormalityNothing of concern seen — reassuring

Come across a term that isn't here? Patiently AI's built-in medical glossary covers over 9,000 terms — or paste the whole letter in and it explains everything in context.

What to do when your result arrives

  1. Find the BI-RADS category or headline result.
  2. Read what happens next — routine recall, a follow-up in a few months, or further tests.
  3. Don't panic at a callback — most lead to a normal or benign result.
  4. Note any dates for follow-up images or appointments.
  5. List your questions for your GP or the breast clinic.

Unsure what your letter means?

Patiently AI turns "BI-RADS 2, benign calcifications, routine recall" into plain English — and explains what's reassuring and what, if anything, to follow up.

Try it with your own letter → Paste, upload, or photograph your result letter.

Questions to ask your GP or breast clinic

Patiently AI generates personalised "Questions for your doctor" automatically from your letter — so you feel prepared, not anxious.

Frequently asked questions

What is a BI-RADS score on a mammogram?

BI-RADS is a standard 0–6 scale radiologists use to summarise a mammogram. 0 = more images needed; 1 = normal; 2 = benign; 3 = probably benign with short follow-up; 4 = suspicious, biopsy suggested; 5 = highly suggestive of cancer; 6 = cancer already confirmed by biopsy. Most screening mammograms are 1 or 2.

Does being recalled after a mammogram mean I have cancer?

No. A recall means the radiologist wants more images or a closer look — often because of overlapping tissue or an unclear area. The large majority of people recalled after screening do not have cancer. It's a normal part of careful screening, not a diagnosis.

Are breast calcifications a sign of cancer?

Usually not. Calcifications are tiny calcium deposits and are very common, especially with age — most are completely benign. Occasionally the pattern of certain small calcifications prompts a closer look, but on their own they're most often harmless.

What does dense breast tissue mean?

It means you have relatively more glandular and fibrous tissue than fatty tissue. It's common and normal, but it can make mammograms slightly harder to read, so your team may mention it or suggest additional views. It's a description, not a disease.

Can Patiently AI explain my mammogram result?

Yes. Paste your result letter — or upload a photo, PDF, or Word file — and Patiently AI explains what the result and any BI-RADS category mean in plain English, decodes the terminology, and suggests questions to ask. It's free, needs no account, and removes identifying details on your device before processing.

Important: This guide is general information to help you understand a mammogram result, not medical advice. Screening pathways and reporting vary by country and programme. Patiently AI rewrites medical text to make it easier to read; it may oversimplify or miss nuance and does not provide diagnosis or treatment recommendations. Always follow the instructions in your result letter and contact your GP or breast clinic with any concerns.