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Last updated on October 7, 2026
A cat scratching the side of the litter box is a common sight, and on its own it’s often part of normal digging. It’s worth a closer look when the scratching becomes prolonged, happens much more than usual or starts suddenly.
If your cat uses the box normally and brief wall scratching is part of its usual routine, you may not need to change the setup just because of that. If it’s prolonged or new, check the litter level, box size and how clean the box is. If it comes with straining, crying, blood or a sudden change in box habits, talk to your vet.
When It’s Everyday Digging
Many cats scratch around after using the box, and their paws often hit the walls as well as the litter. If your cat enters, eliminates normally and the wall scratching is brief and consistent with its usual pattern, it may simply be part of the digging sequence.
Setup Things to Check
The litter level. If the litter is flat, compacted or low, there may not be much to dig into. Follow the litter maker’s fill directions, since the recommended depth varies by formula.
The box size. If your cat’s back end hangs over the edge, or it can’t turn around, the box may be too small. Our best extra large litter box guide covers sizing.
How clean it is. A box with waste building up gives your cat fewer clean spots to dig. Scoop often.
The litter texture. If the scratching changed after you switched litters, the new texture is worth looking at. Try going back to the old one, or offer the new one in a separate box. Our guide on how to transition cat litter covers it.
What Not to Do
Don’t scold your cat for it. Scolding adds stress around the box.
Don’t change the box, litter and location all at once. Change one thing, then watch.
When to Talk to a Vet
Talk to your vet if the scratching comes with straining or crying in the box, repeated trips with little output, blood in the urine or stool, a sudden change in elimination habits or other new litter box behavior.
Frequently Asked Questions
Is it normal for cats to scratch the sides of the litter box?
Yes, many do as they dig. It’s worth a look when it becomes prolonged, happens much more than usual or starts suddenly, or comes with the vet signs above.
Why does my cat scratch the sides but not the litter?
Check whether the litter level matches the maker’s directions and whether the litter has become compacted. If the scratching is new, also look at what else changed in the box or litter.
Does a bigger box help?
It can, if your cat looks cramped or its back end hangs over the edge.
Should I stop my cat from scratching the box?
Not if brief wall scratching is part of your cat’s usual digging routine. If it becomes prolonged or suddenly changes, check the box setup and watch for the vet signs above.
