Neuritis is simply pain resulting from an irritated nerve. The sural nerve is one of the five nerves that crosses the ankle and then provides sensation to the foot. The sural nerve travels down the back of the leg along the Achilles tendon and crosses over to the back of the fibula (outside or “lateral” ankle bone) before it curves down along the heel and proceeds out to the little toe. The sural nerve only provides sensation to a small area along the outside of the foot and the 4th and 5th toes.
All About Peroneal Tendon Problems A tendon is a structure that is the body’s equivalent of a cable. But instead of steel wire, thin collagen strands bundle together and connect muscle to bone. The peroneal tendons are frequently injured in runners and triathletes. They are also commonly injured during an ankle sprain. The result is pain in the outside of the ankle or foot.