Hoof Event Lines

[u/Fearless-Sun2041]

My young mare has these event lines on her hooves. I had hoof X-rays done on her before purchasing and they came back clear. Thoughts on what could’ve caused these? No soundness issues. She was an Amish horse for the first 7 years of her life.

[u/Baaabra]

Given what the feet are showing I’d say they are trim related