07/28/2025
While it’s a common equine emergency, esophageal obstruction (“choke”) can look alarming, especially if you've never seen it before. Unlike in human medicine, where choking refers to a tracheal (or windpipe) obstruction, choke in horses refers to an obstruction of the esophagus (the muscular tube that carries food from the mouth to the stomach).
Most commonly, choking occurs when horses eat concentrated feed too quickly without chewing appropriately, which results in a firm bolus lodged in the animal's esophagus. However, esophageal obstruction can also occur with hay or straw, hard treats, carrots, or nonfood objects. Poor dentition, which leads to inadequate chewing, is also a frequent cause of choke.
While common, choke can have serious consequences. So, be sure to call your veterinarian as soon as you notice signs of choke. A bad choke is fairly obvious to both veterinarians and horse owners, but a mild choke could be confused with an upper respiratory tract infection or colic.
