The tarsal tunnel in the ankle is the equivalent of the carpal tunnel in the wrist. The tarsal tunnel is located inside the ankle next to the ankle bones. It's job is to protect veins, arteries, tendons and nerves, one of these being the posterior tibial nerve. When this nerve is squeezed, or compressed, it results in a condition called tarsal tunnel syndrome (TTS).
Many patients experience a tingling or burning sensation inside the ankle or in the sole of the foot while others experience pain in the ankle, heel, toes, arch, and even up the calf.
It is very important to seek proper medical care at the early onset of TTS symptoms. If the condition is left untreated and progresses, it may result in permanent nerve damage.