I've had some of these 'bumps' for a while(some, I think, are newer) and now I don't have acne anymore they've become very noticeable to me. They are flesh coloured and smooth to the touch. I have been using Differin on them for one week (I've been using it on my cheeks for 1 year) and maybe two or three of these bumps have gotten bigger but not inflamed. When I stretch my skin out most of them disappear which makes me think that this isn't clogged pores or closed comedones or anything, but I might be wrong. Also in some lights they're basically invisible so overall I am generally confused, but I think it could be scarring because of how long I have had a few of these bumps. Has anyone else had similar?
It's hard to say since they are barely noticable but I doubt they are hypertrophic scars considering the position. How long have you had them, do they come and go or change in size? Even if they were hypertrophic scars they are probably easily fixable if you really wanna get rid of them.