Hello, Sunken cheeks commonly occur due to poor nutrition, lack of sleep, extreme exercises, excessive masturbation, smoking, dehydration, etc. Underlying medical condition like a chronic disease, anorexia and tuberculosis, lipoatrophy causes sunken cheeks. Take fluid and water adequately. Quit smoking or any other addiction. Get clinically examined and get underlying disease condition diagnosed and treated. Sunken cheeks are treated by dermal fillers, liposuction, fat transfer to face, face lift, upper and lower eyelid reduction. Surgery is recommended only when required. Sunken eyes are treated with cool compress, and dermal fillers. Take adequate sleep. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K, General & Family Physician