Well yes, they do turn into something else. They leave behind their protozoa called Dimentious Fragilis. I thought I had pinworms, but was never confirmed diagnostically. (not surprised) What I think I've seen has been them, but I'm not a parasite expert. I don't have them anymore because of my constant cleansing and hygiene, but what I am left with is an "unkonwn taxonomy" which is most likely protozoa according to metametrix. If I did ever have pinworms, I don't have symtoms of Dimentious Fraigilis and it's all so confusing. Protoza are even harder to erradicate, plus after you have a parasite, you are left with protozoa/and the yeast. The yeast is even harder to get rid of.