Nerve damage occurs when the nerves that transmit signals between the brain and the rest of the body are injured or diseased. This can lead to symptoms such as pain, weakness, and numbness, often affecting the hands and feet. Conditions like diabetes and trauma are common causes of nerve damage. The severity of nerve damage can vary, with some individuals experiencing mild symptoms while others may face significant challenges in daily activities. Treatment options include medications, physical therapy, and in some cases, surgery to repair the damaged nerves. Early diagnosis and intervention are crucial for better outcomes.