My horse has been intermitently lame for about 8 months now. Only very slightly, 1/10th in the off fore leg and only on a circle with that leg on the inside, he trots up completely sound on concrete in a straight line. Unfortunately he threw a rather huge splint on that fore leg several months ago and when he was not quite right again, I put it down to that. I waited for about 6 weeks and he was stilll on and off not right so I took him to the veterinary clinic for nerve blocks and x rays. They blocked out the coffin joint and navicular separately and he was still unsound but when they blocked the foot altogether he was almost ok. We took x rays that showed good bone and no sign of any problems or abnormalities. The vet said that he was led to believe that the very mild lameness my horse was showing was probably down to bruising of the laminae area as due to the blocks and x rays that was the only other area the problem could be in. I was advised to carry on working him (as it was so mild, some people could not even recognise it) but only on a soft surface and my farrier was advised to carry on shoeing him but be aware of giving good heal support and keeping the toes short. Within two weeks my horse was sound and we have been doing great until.........................Saturday i was riding in the school and he didnt feel quite right again on the right rein. I am at the end of my teather and really dont know what to do next. Has anyone had any similar problem or any ideas as to where to go next? I am going to ring my vet again tomorrow. I already use a remidial farrier and I am just worried that my horse is never going to stay sound. The only coincidence I have is that the splint has flared up again but if it was the splint causing the problem in the first place then why did he go sound when blocking out the foot. Many thanks for reading and I look forward to recieving your replies.