Diabetic neuropathy is a type of nerve damage that can occur in people with diabetes. It is also sometimes known as peripheral neuropathy. Diabetic neuropathy most commonly affects the feet and legs, but it can also affect the hands, arms, and other parts of the body. Diabetic neuropathy is caused by high blood sugar levels damaging the nerves over time. The symptoms of diabetic neuropathy can vary depending on which nerves are affected. They may include pain, numbness, tingling, or weakness in the affected area. In some cases, diabetic neuropathy can lead to serious problems such as foot ulcers and infections. Treatment for diabetic neuropathy typically involves managing blood sugar levels and pain relief. Some people may also need surgery to correct any damage to the nerves or to relieve pressure on them.