Hi, I just had a pinworm swab done at my doctors. I am shocked that it came back negative and now I'm going to redo it 3 more times. My question is that I have picked up stuff on my own tape sample. I've used clear packing tape. Its great because it covers a large area. I've only met 1 doctor that said he had a microscope and bring in anything I've got to show. (course he costs big $) I am going to wait until I do the 3 swab tests for Quest to do again. hate to prolong this. In any case, would there be another parasite that would be similiar to a pinworm? Causing the same symtoms, anal itch? My doctor said that pinworms are tiny. But what I picked up on my tape sample was very pinlike, but like at least 1/2 inch long. I just read that females can be 8-13 cms long, it's the males that are tiny - like 2-5 cms. long. Could I have another kind of parasite? Is this why I haven't really responded to medication or to the EXhumaworm cleanse? Well, in the end, I know I'd be on the parasite cleanse anyway, but wondering if it could be something other than a pinworm infection.