Scar Tissue

I know scar tissue is a well known problem when it comes to diabetes due to all the needles we use in our day to day lives. I was curious if scar tissue is still a big problem though since needles are so much smaller. I can’t see how my 4mm-5mm needles would cause scar tissue . I rotate sights / areas daily because I want to avoid scar tissue but should this be something I worry about long term? or is it less of an issue now? I tend to stress about diabetes related issues such as this and want to put my mind at ease a little since this is something I think about alot. I would really appreciate it if someone could explain if scar tissue is still a problem with small needles or not. Thank you