It is hard to tell. Sometimes parasites & intestinal mucous and/or food particles can look a lot alike.
In a way, it may not even matter that much. One way or another you probably need to do a parasite cleanse.
See link below for cayenne pepper challenge test to see if you have tapeworms, for example. Hulda Clark says everyone she ever lab tested had Tapeworms & everyone had other kinds of parasites as well.
What helped me in case any of it can help you: //www.curezone.org/forums/fm.asp?i=1522290#i