Is this mold?

/r/Mold is an educational and informative subreddit for redditors trying to deal with mold in their homes, apartments, work places, etc. It IS NOT a place to have your mold identified. You need laboratory analysis for that. And DON'T POST PHOTOS OF DIY PLATES/TEST KITS

What kind of scars are these?

r/SelfharmScars is a subreddit where you can share pictures of your selfharm scars. Please contribute to a positive atmosphere show support for recovery! Make sure to read the rules before posting and report posts and comments that break the rules. Disrespectful behavior and repeated violation of the rules will result in being banned.