Bumps around my groin 8 months after lipo. What is this? (Photo)

I notice bumps around groin area thinking it was razor bumps a month ago now these bumps look like this. They are raised & slightly hard. Went to a dermatologist who said they are blood blisters but it's concerning that they are getting bigger in a months span & dermatologist said just to monitor it. I have an apt w/ a different dermatologist for a second opinion. Im prone to keloids & got lipo done 8 months ago and targeted the "fupa". Could this be a delayed reaction to lipo? Any suggestions?