The presence of calcified foci in the left breast on imaging is usually indicative of benign breast disease, abnormal breast development, and certain types of breast cancer. Calcifications can be characterized as benign or malignant based on their shape, size, density, margins, and distribution. Calcifications can be formed from secretions of activated cells or from fragments of necrotic cells. Calcifications in some benign diseases, such as a few breast hyperplasias and mastitis, show diffuse sedimentation. Clustered and linear calcifications are more likely to be malignant and may appear as sediment, rods, or bifurcations, and require further diagnosis. If you have breast calcification, it is recommended that you go to the hospital and follow the doctor’s instructions.