Diabetes can affect which parts of the body if not controlled Posted on July 6, 2026 by Harpreet Kaur 3. Diabetes can affect which parts of the body if not controlled? Eyes, kidneys, nerves, and heartOnly hairOnly bones Validate Email Explanation: Yes! Long-term high blood sugar can damage blood vessels and affect different organs. Explanation: No! Diabetes mainly affects organs and body systems, not only hair. Explanation: No! Bones are not the main organs affected by diabetes complications.