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Numbness in the Feet. Numbness in the feet is a loss of sensation or feeling in the feet, as a result of improper communication between the nerves and the central nervous system. Commonly foot numbness is attributed to a blood shortage in the foot. This occurs when someone is sitting cross-legged for an extended amount of time.
Direct compression of the nerves of the foot by too-tight or poorly fitting footwear is the most common cause of paresthesia, or numbness, of the toes, according to MediceneNet. Compression of blood vessels also might cause pain or tingling in the toe. A radiculopathy, or pinched nerve in the spine, can cause numbness of the foot by irritating the nerves in the lower back. Peripheral vascular disease also might cause numbness in the extremities, including the toes, according to MedicineNet.