Either this is a ghost or a person is in your house. Either way you should probably get the hell out of there.

or.. your hand swelled from being in water for so long?

I doubt OP's hand would've swelled that much from just a shower.

Maybe someone who came over previously put their hand on the mirror (for whatever reason), then the steam from the shower made the handprint visible again. Either that or you have a stalker

Needs a follow up

I heard that if you record them, they get angry and everything gets worse?

@28 9/10 of your comments are downvoted bro, time to change your comment game.

Or maybe someone has been paying rent for two months, not knowing that the place wasn't vacant.

You just made my day! I sww that fml too hahaha

If I was the guy that posted the fml and I read all these comments I would be extremely paranoid to do anything in my house, because everyone is saying a bucks of creepy things that could have happened..

Actually oil from handprints can keep steam from condensing on the mirror, so it could be from a while back. Or it's a ghost

#100: Can confirm. I use the finger-oil trick to prank my friends with creepy or hilarious mirror messages. If they don't clean their mirrors, those messages can last for a long, long time. (Pro tip: Use a small amount of cooking oil for extra oiliness => extra message-longevity.)

she must have

*creepy

yeah, English isn't my first language.

Gonna be straight up real here most likely completely fake

People tend to think everyone knows perfect English... I bet he can't speak your native language!

probably not, Dutch is hard to learn. (:

Your English is pretty good for it not being your first language

The real answer is a hobo midget

did you know that once a man in japan was hearing noises while he was sleepinh through his apartment but he didn't think any of it but it got really disturbing so he set up some cameras and found out that a homeless woman was living in his closet for the past 2 months... so anything is possinle

how do you not realise someone's living in your closet for that long

Hobo midget did it

But then again, how would he reach?

Maybe he climbed up on the sink, or something, and did it xD

Hobo midgets are known to possess radical powers of slam dunkingness, therefore the hypothesis dictates that the mirror got posterised son.

Hobo midget doing "humans can lick too"? Do you own a dog OP? Or think you do?

uhm what?

Who is this "hobo midget" you speak of? I am intrigued or maybe afraid. Should I be afraid? O.o

Imagining that just gave me the chills...

Oh my god. I have to check my attic now.

Most people in Australia don't have attics, so that's very unlikely. :-) yay, one less creepy option.

Or the oven

Don't blink. Don't even blink. Blink and you're dead. Don't blink.

What's funny is I was about to comment that, and then you showed up, but anyways, nice comment

So their hand got fat in those couple of weeks? The size difference is the issue mate.

Can live alone and still have guests...

unless it's a demon passing itself off as a child spirit or what ever. I'm no expert and I don't know the size of the print so I'm just guessing.