worms..could they be hhard to see?

Just wondering, when we first ever wormed Flower I noticed a really big worm (looked earthwormy) in her poo! But since worming Willow, I asked the vets if her borking and trying to be sick could be the wormer, they said shes getting rid of the worms.

But she is only sicking up flem, and I see no trace of worms...could there be a type of worm that is very small and hard to see with the naked eye?

Thanks xx

Most modern day wormers kill the worms then the body digests them so you wont see them. Only when there is a larger infestation would they be visible.
Becky

I'm no expert, but I don't think worms are always detectable by the naked eye.
However I thought the worms were got rid of via the poo and not by being sick.
As I say I don't really know, there will be far more knowledgable people along in a moment who can tell you more than me.