Pinworms in horses are caused by a parasite called Oxyuris equi. The lifecycle of ms in horses is a little different to other intestinal worms. It’s important to understand the lifecycle so that appropriate equine pinworm treatment can be given.

Equine pinworms, or Oxyuris equi, are common parasites that inhabit the horse’s colon. Female pinworms lay their eggs on the perianal skin (around the anus), which can cause intense itching and irritation for the horse. [1] Pinworm infections are most common in younger horses, but horses of any age can be affected.

Pinworms in horses are a pervasive problem, especially younger ones, and without proper treatment, they can spiral out of control and cause severe pain to your horse. This guide will discuss what pinworms in horses are, how they are caused, how you can prevent them, and what treatments are available.

Pinworms (Oxyuris equi) are one of the primarily causes of tail rubbing in horses. Through rubbing, horses spread the eggs of the pinworm throughout their environment, which are able to live for a significant period of time since