Medical sensors are devices that monitor and collect data about a patient's health. They can measure vital signs such as heart rate, blood pressure, and temperature. These sensors help healthcare professionals track a patient's condition and make informed decisions about treatment. There are various types of medical sensors, including wearable devices like fitness trackers and implantable sensors used in more complex medical situations. Advances in technology have improved the accuracy and reliability of these sensors, making them essential tools in modern medicine for both diagnosis and ongoing health management.