Neutrophils, macrophages, and other mononuclear cells can be normally observed in high numbers in normal milk; however, the presence of large numbers of free bacteria and degenerative neutrophils are noted with the presence of septic disease.
Meanwhile, if there is cancer present in the breast, the affected glands will not produce milk. Differentiation between malignant and benign condition will be achieved with an examination and culture of the mother's milk.