u/FightingFarrier18

Looking for some insight on this guy’s frogs. All 4 look like this. The owner is a vet, but neither one of us have seen anything like this. She was thinking it may be a precursor to canker, but I’m leaning more towards environmental causes. We went from drought to 5+ inches of rain over the last week. I trimmed a good amount of frog and didn’t hit any sensitive tissue

Older draft horse

ETA: the central sulcus has pretty much separated from the rest of the frog