I have a 10-year-old mare being treated for pinworms. She incessantly rubs her tail. She also uses the wall of her stall or anything else available to lean on while defecating. Are these signs related? Could they be behavioral?

To continue reading this article, become a member of TheHorse.com.

It's FREE and you'll get full access to more than 20,000 articles, video, free reports & more.

Sign In