I have not been out to the barn to visit my horse for about 5 days now due to the extreme cold weather conditions we are having here. I pulled him out of the pasture today and noticed that he had fresh blood on his lower and upper lip. Not a lot, but it was fresh, and he has a white nose, so it was noticeable. There are no noticeable immediate lacerations or bumps on the outside of his lips or on the inside of them, all though i didnít get too detailed of a look because the poor guy was confused as to why we were messing with his mouth. I checked his hay in his pasture, and the hay in his stall - no thorns or sharp sticks. So what could have caused this? The blood was fresh and hadnít dried when I pulled him out of the pasture today, so I believe it happened very recently. Should I be concerned? He happily ate a small peppermint that I gave him and didnít appear to be in pain while eating, and was also munching on hay when I got him out of the pasture.