I do not have bumps like this, however, I do have
acne. I believe this started out like a pimple When looking at it, you notice the pin hole, but that's about it. If it weren't for that, I don't think you would notice it unless you rubbed my arm. It isn't raised. You can feel the bump underneath the skin, more like a cyst. It feels like a ball. I do see my doctor regularly for acne along with depression.