They're eggs of tape worms. I'm doing lots of research for my son who's 7 and flushing all of this. I looked it up and sure enough- sesame seed looking eggs are from tapeworms. He's flushing dead Tapeworms too. Make sure to alkalize too. Take some alfalfa, chlorella, and horsetail capsules. Mega CoQ10 doe of 3,000mg 1 time is mentioned too for these. I'm at this very moment giving my baby the CoQ10 and hoping for and end to his misery with these blasted things. Good Luck!