The sural nerve provides sensation to the foot & it’s entrapment can lead to pain in the foot area. Many time it is termed as sural neuritis or sural neuralgia.
It is one of the five nerves that goes down through the center of the calf muscle. Its direction is through the back of the leg, going over the Achilles’ tendon and ending up in the little toe.
When compared to other nerves, the sural nerve is one of the minor ones, as it provides sensation for the outside of the foot, for the areas between the 4th and the 5th toes.