Is that bloody urine in the snow? Probably not.

Finding bloody-looking urine in the snow under your horse may send you racing to call the veterinarian, but chances are it's perfectly normal.

If you think you see bloody urine in the snow under your horse this winter, don’t panic. Finding bloody-looking urine in the snow under your horse may send you racing to call the veterinarian, but chances are what you’re seeing perfectly normal.

A white horse walking through the snow
Red urine spots will stand out in a snowy field, but don’t let it panic you. Chances are, it’s not blood in your horse’s urine, but a normal chemical reaction.

Click here to find out if your older horse’s winter diet is sufficient.

The red spots that you see are a result of your horse’s urine reacting with the cold snow. Proteins in the urine, called pyrocatechines, oxidize in low temperatures, which produces colors ranging from a light pink to red, orange or brown. The same thing can occur when a sample of urine is refrigerated.

When in doubt, collect a fresh urine sample from your horse—a process that involves a large can duct-taped to a long stick and a lot of patience. If the collected sample isn’t red, your horse is probably just fine.

Don’t miss out! Get the free weekly EQUUS newsletter, with the latest horse health information delivered right to your in basket! If you’re not already receiving the EQUUS newsletter, click here to sign up. It’s *free*!

What did you think of this article?

Thank you for your feedback!