Equine Urine: Unusual Appearance Might Be Okay

A note in the University of Minnesota Horse Newsletter points out that equine urine can have a red appearance after it hits snowy ground. While this may look like a sign of kidney problems or another illness, the article explained that a red or orange color in voided urine can be normal in healthy horses. The hue results from plant metabolites mixing with oxygen and often isn’t noticed unless the horse urinates into snow, producing a patch of color that is easily seen.

Normal horse urine can range from colorless and clear to dark yellow and cloudy. Though it may change color as it oxidizes, it should stay within this range as it is released. However, urine that looks red, brown, orange, or coffee-colored as it is being voided may be a sign of disease or muscle strain.

Other indications of a problem include an inability to pass urine, straining while urinating, and unusually frequent urination. Owners who suspect their horses may have a problem with kidney or bladder function should ask a veterinarian to perform an examination.