Hi. Well at first I didn't. I make it my business to look at my stool to look for "stuff" being eliminated. That being said, there was this long, clear spagetti looking thing and when i picked it up with a q-tip it seemed worm-like. So....I knew it had to be something and I Googled for parasite pictures and read older messages in this forum for answers, for people who experienced the same thing. And somebody confirmed my description as what i believe to be a 'round worm' to another woman who had the same thing in her stool. Hope that helps with your question.