What is going on when my horse pins back his ears and will not trot?

Answer by  Gillian (27)

Most likely the saddle is pinching him somewhere, probably at the shoulder. If it isn't the saddle, it still definitely means he is feeling pain/discomfort somewhere.

Answer by  Natalie (30)

He is angry or uncomfortable. Maybe lounging him or talking to him or he needs to be trained how to trot.

Answer by  Impulsion (21)

Your horse is protecting himself from either fear, or pain, he is telling you something is wrong. Be sure your tack fits properly Is there a medical condition needing attention?

Answer by  sharon52 (195)

This is how your horse indicates that he's annoyed, angry and wants to assert himself rather than do what you want him to do.