Peripheral nerve damage occurs when the nerves outside the brain and spinal cord are injured. This can result from various causes, including diabetes, trauma, infections, or exposure to toxins. Symptoms may include numbness, tingling, weakness, or pain in the affected areas, often impacting daily activities. Diagnosis typically involves a physical examination and tests like nerve conduction studies or electromyography. Treatment options vary based on the cause and severity of the damage, ranging from medications and physical therapy to surgery in some cases. Early intervention can help improve outcomes and restore function.