Jumping and bucking into canter???

[stumblin' joe]

My horse that I've owned for 18 months has recently started to jump into a canter and then buck out while going along. Never done it before, it's like he is over excited and when I try and hold him back he'll resist and give a little rear.
He also shakes his head really badly to the point his bridle comes off!! The bit is the one he has always had, as is his saddle and his teeth have been done!
How do I prevent him from doing this, he is becoming dangerous. I'm going to lunge him but it's usually when I'm on him! His walk and trot is fine.
Please help as its spoiling him.

 

[MiJodsR2BlinkinTite]

Mmm, sorry, know you've had saddle "checked" and teeth done; but IMO this indicates a pain and/or discomfort issue somewhere. Did you have the saddled checked by the same person that always does it? Coz it just might need someone fresh to see something the other person hasn't seen.

If it was mine, I'd be inclined to get an equine physio/chiro out to take a look - and also (am not being funny here) get yourself checked as well; coz know from my own experience that rider imbalance can and does affect the horse's way of going.

You don't say how old your horse is?

 

[micramadam]

We have had a similar problem with our warmblood earlier this year. See thread Explosive and dangerous.
She had had her teeth checked just 6 weeks prior but we went for a second opinion and also had the saddle checked and we got the osteopath in. Turned out she had peridontitis, a small problem with the saddle but the major cause of the issue was her a problem with the atlas bone. Once this was handled - what a difference. She is still not perfect in her transition from trot to canter as she is a bit of as hot head but it is getting there.
We are planning to ask the osteopath to come out and check her again to make sure that everything is still as it should be. It maybe that with this particular horse the osteopath will have to come out twice a year just like the saddle fitter and the dentist.

 

[Tilda]

My horse used to do this particularly on the lunge but when ridden in a circle too. I got the back lady out and after watching me lunge him she said it looked like wear and tear showing as slight stiffness in his hocks not bad but perhaps a precursor to arthritis. She suggested I put him on a supplement and I chose Boswellia as recommended by my YM. It has made a massive difference even on a low dose he now canters comfortably on both reins even on the lunge