Some of what you are describing appears to be "spitting stitches". You can look it up on a reputable website (like Mayo's). Essentially it is a stitch that doesn't absorb and the body pushes it out (hence why it may show up at the skin). Some people also experience these "bumps" on the surface of the skin. They are not "harmful" until they are an issue for the individual. Then it is best to have a practitioner address it. If you had staples, it's a nonissue. Those come out. Again, I suggest you do some research and ask questions. I have had dissolvable stitches from skin cancer and have experienced same as some of you. Worst experience was the sutures on my face. I have bumps as the stitches had not fully dissolved. You can mitigate this from happening by being proactive and having a conversation with your provider!