Mammography is the primary method for early breast cancer detection, but 2D mammograms have limitations. 3D mammograms, also called digital breast tomosynthesis (DBT), can help overcome these limitations by capturing multiple X-ray images of the breast from different angles and using computer software to construct 3D images. DBT allows radiologists to view thin virtual slices of the breast tissue and reduces overlapping images, making small cancers easier to detect compared to standard 2D mammograms. The presentation introduces 3D mammography and its advantages over conventional mammography for improved early detection of breast cancer.