Radiology is a medical specialty that uses medical imaging techniques, such as X-rays, CT scans, MRIs, and ultrasounds, to diagnose and treat diseases and injuries in the body. Radiologists are medical professionals who interpret these images to help other physicians make accurate diagnoses and develop treatment plans for patients. Radiology plays a critical role in modern medicine by providing valuable information about a patient's internal anatomy and health status without the need for invasive procedures.