What serious condition can anhidrosis lead to in horses?

Anhidrosis is a condition in horses characterized by the inability to sweat properly, which disrupts the body's ability to regulate temperature through perspiration. When horses unable to sweat are subjected to heat and exertion, they are at a higher risk of overheating, leading to a state of heat exhaustion. This condition can become life-threatening if not addressed, as it can cause a horse's body temperature to rise dangerously high.

Heat exhaustion can manifest with symptoms such as increased heart rate, labored breathing, and lethargy. In extreme cases, it can progress to heat stroke, which can be fatal. Other conditions such as dehydration and electrolyte imbalance can also occur as secondary issues due to heat exhaustion and inadequate sweating, but the primary serious concern stemming directly from anhidrosis itself is indeed heat exhaustion. Therefore, understanding the implications of anhidrosis is critical for any horse owner or caretaker, as it underscores the importance of monitoring horses for signs of heat stress.