In most cases you don't see it all the time. It has to do with what type of parasite it could be but most cases it does show a tiny drop of blood somewhere and most of the time it's on the urate.
Upon reading online when I had beardies it was any sign of red in urate OR rust colored feces could indicate a parasite(s). Or it could show constipation strain as well but most cases noticeable in wild caught and raised species.