While white patches on the withers are more common than on the loins, they both represent a disparity in saddle fit; usually it is because the saddle is too tight in these areas. When you get both problems occurring together, it usually represents a “bridging saddle”, meaning that the saddle is too tight at both the withers and the loins. It may be that your horse has been dropping or lowering his back away from the saddle in order to get away from the discomfort at one end or the other, thus creating a gap in the mid section. The saddle will then only makes contact on the front and back. It may also mean that your horse is getting older or out of shape and has lost muscle tone. The reasons may vary, but the fact remains: saddles should have even load distribution all along the length of contact. The Cavallo Bridge Pad #3001 is thin at the withers and the loins, while gradually thickening towards the middle. This distributes weight more evenly along the muscular structure, while still providing a gullet which allows the spine to lift again in rehabilitation. This will provide relief while you decide whether to continue with your current saddle.