Medial and lateral plantar nerve entrapment

[Mark Zuckerberg]

Medial and lateral plantar nerve entrapment is compression of nerve branches at the inner heel (the medial or lateral branches of the plantar nerve) that causes pain.
The nerve branches are pinched (compressed) between bone, ligaments, and other connective tissues, causing pain. The pain is made worse when ankle motion and certain shoes or activities such as running put additional pressure on the pinched nerves.
(See also Overview of Foot Problems.)