Essential Takeaways:
BI-RADS scores help standardize how radiologists describe findings on a breast imaging report.- Each BI-RADS category explains what was seen on imaging and what follow-up care may be needed.
- Most mammogram results fall into categories that are considered normal or likely benign.
- Knowing BI-RADS can help you feel more informed and less anxious about your results.
- Your provider can help you read your report and determine the appropriate next steps.
Reading Your Mammogram Results
Getting the results of a mammogram can bring a mix of emotions. You may feel relieved, nervous, or unsure about what the medical terms actually mean. If your report includes a BI-RADS score, you might wonder whether the number indicates something serious or simply describes routine findings.
Understanding BI-RADS can make your breast imaging report much easier to interpret. BI-RADS stands for Breast Imaging Reporting and Data System, a standardized method used by radiologists to describe imaging results and recommend follow-up care. When you review a mammogram report, this scoring system helps translate complex imaging findings into clear diagnostic imaging categories that guide your next steps.
Why the BI-RADS System Exists
Before the BI-RADS system was introduced, mammogram results were often described using different terminology depending on the radiologist or imaging center. This sometimes created confusion for both healthcare professionals and patients.
The American College of Radiology created the BI-RADS classification system to create consistent communication about breast imaging findings. Today, it is widely used for mammograms, breast ultrasounds, and breast MRI exams.
What the BI-RADS Numbers Mean
Your breast imaging report will include a categoric number ranging from 0 to 6. Each number provides information about the findings and whether additional testing is recommended.
BI-RADS 0: Incomplete
A BI-RADS 0 result means the radiologist needs additional images before making a final interpretation. This does not mean something abnormal was found, but rather that more information is required.
Your provider might ask you to come back for extra views or an ultrasound to get a clearer picture. According to the American Cancer Society, less than 1 in 10 women who receive screening mammograms are asked to return for additional imaging, and most of these cases do not result in a cancer diagnosis.
BI-RADS 1: Negative
A BI-RADS 1 score indicates that the imaging shows no abnormal findings. Your breast tissue appears normal, and routine breast cancer screening is recommended according to standard guidelines.
BI-RADS 2: Benign Findings

This next category indicates that the radiologist saw a noncancerous change in the breast. Common examples include simple cysts or benign calcifications.
These findings are not suspicious and do not increase your risk of cancer. Routine screening usually continues on your regular schedule.
BI-RADS 3: Probably Benign
A BI-RADS 3 result means the finding is very unlikely to be cancer, but should be monitored with follow-up imaging. Radiology studies show that fewer than 2% of BI-RADS 3 findings are later diagnosed as cancer.
Your provider may recommend another mammogram or ultrasound in about six months. This follow-up helps confirm that the area remains stable.
BI-RADS 4: Suspicious Finding
A BI-RADS 4 score indicates that the radiologist sees something that may need further evaluation. This category is often divided into subgroups to reflect different levels of suspicion.
Another test, such as a biopsy, may be recommended to determine if the tissue is benign or cancerous. Many BI-RADS 4 findings turn out to be noncancerous, but a biopsy provides a clear answer.
BI-RADS 5: Highly Suggestive of Malignancy
A category 5 score means the imaging findings have a high probability of cancer. Studies show that more than 95% of BI-RADS 5 findings are confirmed as malignant after biopsy.
While this result can feel frightening, early diagnosis often allows for more effective treatment options.
BI-RADS 6: Known Cancer
A BI-RADS 6 score is used when the presence of breast cancer has already been confirmed through a biopsy. Imaging in this category is typically used to guide treatment planning and monitor the disease.
Why Follow-Up Recommendations Matter
Your BI-RADS score does more than describe imaging findings. It also guides your next steps. This may include returning to routine screening, scheduling short-term follow-up imaging, or completing additional diagnostic testing.
It’s important to follow these recommendations to maintain good breast health. Early detection is imperative to improve outcomes. The American Cancer Society reports that early detection of breast cancer is associated with a five‑year survival rate of about 90%.
We Are Here To Help You Understand Your Results

Reading a diagnostic report can feel intimidating, especially when you encounter terms such as BI-RADS. You deserve clear explanations and compassionate guidance when reviewing your results.
If you have questions about interpreting mammogram results or scheduling your next breast cancer screening, Raleigh Gynecology & Wellness is here to support you. Get in touch today for professional advice, empathic care, and a personalized approach that puts you in control of your health.
