Polyneuropathy presents with a broad spectrum of symptoms resulting from nerve damage. Patients commonly experience numbness, tingling, burning sensations, loss of sensation, or pain in their hands and/or feet. Muscle weakness, gait disturbances, and difficulties with fine motor skills (e.g., gripping objects or making a fist) are also frequently observed signs. In affected areas, muscle wasting (atrophy), slow-healing wounds, hair loss, limb deformities, and nail abnormalities or loss may occur. In advanced cases, there is a risk of developing serious complications such as pressure ulcers (bedsores) and gangrene, particularly in the feet.