Raman spectroscopy is a powerful tool for quickly diagnosing diseases and studying living tissue. It uses laser light to provide detailed information about molecules in the body. Scientists have developed advanced techniques using near-infrared lasers and special detectors to improve this technology. They have also created sophisticated systems for research labs and hospitals. By analyzing the data collected, researchers can extract important information about diseases and tissue structure. This method has shown promise in various medical applications and has the potential to be used more widely in the future.