An Joplin’s Neuroma or neuritis refers to an entrapment or pinching of what is known as the inside plantar digital nerve. This nerve supplies sensation to the medial aspect and parts of the top and bottom of your big toe. This entraped nerve is first described in the writings of Joplin in 1971 in 3 cases. https://fishpedicuretoday.com/joplins-neuroma/