The medical field has witnessed significant development in recent years as a result of rapid advances in science and technology. These advances have led to the emergence of modern technologies that have contributed to improving methods for disease detection and diagnosis at early stages, helping healthcare professionals select appropriate treatment approaches and enhance the efficiency of healthcare services. Medical imaging technologies are among the most prominent modern diagnostic tools. Magnetic resonance imaging, computed tomography, and ultrasound technologies have undergone significant development and can now provide more accurate and detailed images, helping physicians detect pathological changes and determine their locations. Artificial intelligence and machine learning have also contributed to advancing diagnostic processes by analyzing medical images and health data and identifying patterns that may be difficult to detect through traditional methods. These technologies can assist healthcare professionals in the early detection of various diseases and support medical decision-making. Modern molecular technologies and biomarker tests also contribute to the detection of certain diseases by analyzing biological markers and genetic information. This enables more accurate identification of some medical conditions and supports the development of personalized medicine based on the individual characteristics of each patient. Wearable devices and smart health-monitoring technologies are also important tools, as they can continuously collect certain vital health data, such as heart rate and activity levels, and transmit this information to digital systems for analysis and health monitoring. Despite the significant benefits of these technologies, their use requires careful consideration of result accuracy, health-data protection, and privacy, in addition to the need to interpret technological results within specialized medical evaluation. In light of these rapid developments, modern technologies for disease detection represent an important step toward advancing healthcare by supporting early diagnosis, improving monitoring accuracy, and assisting healthcare professionals in providing more efficient care that keeps pace with scientific and technological advancements.