What It Is
Thrush is the degradation and weakening of the insensitive tissue of the frog—the triangular-shaped structure on the underside of the hoof. It occurs when various anerobic microbes infiltrate and multiply in susceptible areas of the frog, usually starting in the sulci (the deeper clefts located on either side of and in the center of the frog).
What’s at Stake
A horse can become lame in severe cases, and if the frog is weakened enough that bleeding tissue becomes exposed, it can lead to widespread infection
