A medical probe is an instrument used to explore wounds, body cavities, passages, or periodontal pockets.

These are usually long, slender rods made of either rigid or flexible materials, and may possess many different kinds of ends or tips on them, depending on the application. Some probes may also serve to have detectors of various substances, chemicals, or other

They are used as devices that help to move and examine tissues, or otherwise offer better access in viewing them.