My horse has a lumpy back

[Amy567]

My horse, Matty, has had four small lumps on his back - smaller than a pea- since I bought him last April. The vet at the time said that it was most likely fly bites, at the time he also had considerably more lumps. The rest of the lumps went, but these four remained. Three are under the saddle, one is just behind. He does have two sarcoids (arm pit and a flat one on his sheath) so I kept an eye on these lumps, two formed dead skin/scabs (the larger two) which came off, they aren't painful or irritable in any way - I can poke, prod, pinch them and he doesn't flinch. They still have fur growing on them, apart from the larger two now, which have less fur, but still some fur growing. They don't particularly look like sarcoids either.

Since the warmer weather has arrived, with it being so unpredictable, he's often left in a light weight/medium weight rug, more lumps have formed. The other four have grown a smidgen (though I could just be being paranoid), none of them hurt him at all, but he now has about 8 spread across his back, but no where else on his body.

Could it be that he has an allergy to something? Or could they be sarcoids? Could it be related to the weather change? Any ideas?

 

[dianchi]

I would say that you need to get the vet out to have a good look for you.

 

[Gloi]

They could be collagen lumps caused by the saddle.

 

[Fides]

Or sweat scald from the horse being too warm under his rug (if crusty...)

 

[Izzwizz]

I think they sound like something to do with the saddle or numnah. My horse had one of these and it was due to the numnah being too thick under the saddle. It was tipping the saddle up at the front, putting all the rider weight towards the back and causing the lump to form. Saddler told me this. Vet had checked and said it was nothing to worry about but to get the saddle checked.

If I was you I would get it checked by your Vet and then the saddle fitter. My horse's lump disappeared as soon as I started to use his older numnahs again. Lovely as the new one was (Le Mieux) I sold it as it was no use to him.