Horses generally need to be dewormed in the spring and the fall.

马通常需要在春季和秋季驱虫。

If you dewormed your horse in June and it's July, for example, you don't need to deworm them again.

如果你在6 月和 7 月为马驱虫，那么你不需要再次给它驱虫。

Worse comes to worst, your vet can run what we call a fecal examination on your horse's feces, on their poop, on their manure, and find out if it does indeed have parasites and need to be dewormed.

万一发生最坏的情况，你的兽医可以对你的马的粪便上进行我们所说的粪便检查，看看它是否确实有寄生虫并需要驱虫。