Munchausen Syndrome is when someone pretends to be sick or injured all the time because they like the attention they get from doctors and nurses. They might make up lies or hurt themselves on purpose to make it look like they are really sick. It's like playing a game, but instead of using toys, they use their own bodies. It's not a good game to play, because it's not fair to the people who take care of them, and it's not healthy for the person who has it. It's important to tell someone if you think you or someone you know might be playing this game, so they can get help and stop before it gets worse.