This study was designed to find the association in breast cancer and plasma levels of non-specific esterases in breast cancer patients. For study blood samples were collected from various diagnostic laboratories of Sargodha city. Levels of non-specific esterases were determined in the normal and breast cancer patients. The levels of non-specific esterases were higher in healthy individuals than the breast cancer patients. So, levels of non-specific esterases could be used as a marker for the diagnosis of breast cancer.
Key Words: Esterases, breast cancer, risk factors, diagnosis