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