Anhydrosis in Horses

Anhydrosis in Horses Horses afflicted with anhydrosis become increasingly less able to sweat. And since horses depend on their ability to sweat to help regulate body temperature, much like humans, it can quickly become a serious condition. When suffering from anhydrosis, some horses retain some ability to sweat in certain areas. But the majority are unable to sweat in most areas of their body.

It affects horses that live and work in a consistently hot and humid environment. Therefore, horses in the Southern United States, parts of Asia, and other humid, sub-tropical areas are more prone to anhydrosis, also called dry coat.

Symptoms and Types

• Hair loss on the face, rear end, and legs
• Panting after exercise, or while standing
• Weakened performance
• Decrease in appetite

Causes

• Heightened levels of adrenalin
• Heat and humidity in the environment

Diagnosis

Most veterinarians can easily recognize anhydrosis in horses. They may give an injection of epinephrine to help incite sweating, and if their glands are functional they will sweat until the hormone injection is depleted. After diagnosis, treatment can begin.