Neuropathy symptoms cover a wide range and typically appear in the hands and/or feet. Common symptoms include numbness, burning sensation, tingling, pain, or loss of sensation. Problems such as weakness in motor skills, difficulty making a fist, walking difficulties, tripping, and stumbling may occur. In advanced cases, muscle wasting, hair loss on arms or legs, nail changes, deformities in hands and feet, slow-healing wounds, and even bed sore-like lesions or gangrene can be observed in advanced polyneuropathy.