Dog Nail Clipper Crushing or Splitting Nails? Fixes (2027)

A small clipper on a thick nail cannot close cleanly, so it crushes. A large clipper on a thin nail hides the nail and removes too much at once. Match the jaw to the nail: large for large breeds, medium for medium dogs, small or tip-only for small dogs and puppies. If you are between sizes, use the smaller tool and take more, smaller cuts.

Dull blades drag and split instead of slicing. If a clipper that once cut cleanly now needs force or leaves ragged edges, the blades are worn. Replace guillotine blades with the maker's replacements, and replace a scissor clipper when its edge goes, since small grooming blades are rarely worth sharpening at home.

Long cuts crush the nail structure before the blades finish closing. Take thin slices instead, especially on thick or dry nails, and check the cut surface between passes. A guard or tip-only blade enforces small cuts mechanically, which is why nervous owners benefit from them even after they gain experience.

Dry and overgrown nails split more readily than healthy, regularly trimmed nails. Trim little and often to bring overgrown nails back gradually, and consider a grinder for finishing, since sanding rounds a brittle edge instead of snapping it. Cracked, broken or infected nails need a vet or groomer, not a home tool.

Some nails split under a scissor action but shape cleanly under a grinder, and some guillotine users never adapt to the hole method. If size, sharpness and cut size are all right and splitting continues, try the other type on one nail and compare the result. A grinder finish after a conservative clip solves many splitting cases without abandoning clipping entirely.