What Is a DIP Joint?
The human hand is made up of 14 finger bones, or phalanges: three for each finger and two for the thumb. The term “phalanges” comes from the ancient Greek army formation where soldiers stood side-by- side and several rows deep, as do the fingers and toes. The “distal interphalangeal joints,” or DIP joints are the hinges between the second and third phalanges of the fingers. A number of different injuries are common with DIP joints.
