Biomarkers are considered as tremendous gift of modern biomedical sciences to improve the outcome for people with cancer by enhancing detection and treatment approaches.  Biomarkers could include a broad range of biochemical entities, such as nucleic acids, proteins, lipids, small metabolites, as well as whole cells or biophysical characteristics of tissues. Detection of biomarkers can be accomplished by a wide variety of methods, ranging from biochemical analysis of blood or tissue samples to biomedical imaging. The primary focus of this review article is to find out the role of biomarkers as invaluable tools for cancer; specially breast and cervical cancer detection, diagnosis, patient prognosis and treatment selection. Besides, the future trend of biomarker development for these two types of cancer is also discussed.