I have had areas of diabetic lipohypertrophy on my lower abdomen for over 20 years - caused by lazy injecting when I was a teenager when I would forget to change my needles and would constantly inject in easy areas through the gaps in my shirt buttons when I was at school. The left hand side is a lot worse. I have stopped using these areas for injections for years but there is no improvement. I have attached photos. Would this be something that could be improved with surgery?