The most famous sign? A long, wavy coat that refuses to shed in spring. You’ll see a horse looking like it’s wrapped in a fuzzy sweater in the middle of a heatwave. It’s called hirsutism, and it’s often the first clue for owners.
But why does this happen? The excess hormones mess with the horse’s natural hair cycle. Instead of shedding, the hair just keeps growing. It’s like the horse is permanently stuck in “winter mode”—cool, but also a major red flag.
Here’s a fun comparison: think of it like a garden hose with a kink. The water (hormones) is still flowing, but it’s spraying everywhere instead of going where it’s supposed to. The result? A very confused, fuzzy horse.