Biomarker discovery is the process of identifying biological markers, which are measurable indicators of a specific biological state or condition. These markers can be proteins, genes, or other molecules found in blood, tissues, or other bodily fluids. They play a crucial role in diagnosing diseases, predicting disease progression, and monitoring treatment responses. Researchers use various techniques, such as genomics, proteomics, and metabolomics, to discover new biomarkers. By analyzing samples from patients, scientists can find patterns that distinguish healthy individuals from those with diseases like cancer or diabetes. This information can lead to more personalized and effective medical treatments.