Originally Posted by Little Red
I will put pics up as soon as I can. I dewormed her this year.
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A vet once told me that some worms are immune to the dewormer, so even though most die away, some stay and then they multiply. I'd suggest worming her again except with a different dewormer, which was the vets advice. If the worms were immune to the first dewormer it will be the same for the offspring, so maybe the other dewormer will kill the worms once and for all. Here's an article on how to tell if a horse has worms: How to Tell if a Horse has Worms | eHow