Explain blackheads look like?

I'm not sure if i have blackheads.


So can you describe them?Explain blackheads look like?
blackheads look like little holes in your skin that are filled with black stuff and it looks like they might be able to be scraped out but you can't so if you have them, use retin-A micro.Explain blackheads look like?
Google is your friend!


http://images.google.com/images?hl=en%26amp;q=blackheads%26amp;btnG=Search+Images%26amp;gbv=2