When you’re riding a horse with osteoarthritis (OA), or any arthritis or joint condition, the signs of discomfort might be subtle, but they’re important. OA is a chronic, progressive joint condition that can affect your horse’s movement, attitude, and performance. While it can’t be reversed, early detection and careful management can go a long way in keeping your horse comfortable and active.

We’re breaking down everything you need to know about the joint condition, osteoarthritis (OA), during June, thanks to our friends at Zycosan. 

[READ: Osteoarthritis vs. Other Joint Conditions]

Here are five key things to watch for under saddle that might indicate your horse is struggling with OA, getting worse, or needs intervention.

1. Stiffness at the Start of a Ride

Your horse may feel stiff or “sticky” in his movement during warm-up but loosen up as you go. While some stiffness can be normal, consistent or worsening stiffness is a red flag that OA may be progressing. Oftentimes horses with stiffness from joint conditions ‘come out of it’ after you’ve warmed up, but that doesn’t mean it should be ignored.

2. Shortened or Uneven Stride

Joint issues can affect your horse’s ability to fully extend his joints. If you notice shortened, choppy strides or your horse feels uneven at any gait, it may signal joint discomfort. This can include ‘bunny-hopping’ or dropping his hip more to one side.

3. Reluctance to Move Forward or Turn

If your horse resists forward movement, balks at transitions, or struggles through turns, especially on one side, OA may be causing joint pain or reduced range of motion. Take note of how your horse usually feels doing maneuvers, and if he suddenly isn’t able to stop as hard or behavioral issues arise while doing regular tasks, it might be time to talk to the vet.

4. Subtle Lameness or Feeling “Off”

You might not see obvious limping, but something may just feel “off”. We all know our horse’s and a slight head bob, dragging a hind toe, or just that feeling that he has a hitch in his step is usually noticeable if you’re keyed in on your horse’s movement. Trust your instincts. Subtle signs are often the first clues.

You know your horse best. Listen to him, and if you notice he’s feeling off, reluctant to work, or displaying new behavior, give your vet a call.

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5. Signs of Discomfort or Irritability

Pinned ears, tail swishing, or resistance when asked to work can indicate pain. These behavioral changes, especially if new or increasing, may point to joint-related discomfort. If your horse is Mr. Steady Eddie and suddenly is crow-hopping around the arena, that should be a red flag to look for pain.

Tip: Always monitor how your horse feels before, during, and after riding. If you notice any of these signs consistently, consult your vet to create a plan for managing his joint pain and keeping him comfortable.