Hypothetical question.

Lets say,

A horse has periodic lameness in his hind right at the lope for only a couple of strides every 30 minutes. After those couple of strides he "works" out of it and is no longer lame for another 30 minutes. It happens in both leads and its always the hind right. Only happens with a rider, no evidence while lunging.

No swelling, heat, tenderness, or favoring (other than those few strides)...

The horse is 4.

What seems to be the cause?

A vet will do nerve blocks or xrays to figure it out. Coild be anything from OCD (my guess) to a ligament problem. OCD is probable, in my opinion with this limited information. The joint can "catch" then release, offering intermittent lameness. Does this horse crossfire and/or buck to get a lead?
Posted via Mobile Device

Im sorry, what does OCD stand for?

No crossfiring or bucking.