The lower extremities' nerves facilitate muscle function and provide sensation to skin and tissue. Common nerve abnormalities include neuropathy, neuroma, and tarsal tunnel (ankle's carpal tunnel equivalent). Tarsal tunnel's cause is unclear but may involve injury, compression, or varicose veins. Morton's neuroma, a thickened tissue around foot nerves, could result from compression, pinching, or abnormal biomechanics. Diabetes complications can also cause nerve abnormalities, presenting as tingling, numbness, burning sensation, pain, or weakness. Similarly, sciatica, usually caused by a pinched or compressed spine nerve, may produce tingling and numbness.
