Why wont they use the litterbox

I have 5 cats. One female and two males and two male kittens 3 months. My female has had two litters of kittens, both litters have refuse to use the litterbox.. they will go beside the boxes but thats about it.. i have changed litter, gotten new boxes, move them around (had to move one back cause mom is blind and couldn't find it) but they will not use it. What do i do?

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Snowvixen

Put 6 boxes around the house. The rule of thumb is to have one more box than cats. Also, experiment with kinds of litter. They may dislike the texture.

Viper · M

@Snowvixen this would of been my guess too... or they simply haven't picked up on that need need to be in the box while doing it...

Snowvixen

@Viper Based on my experience kittens pick up on it quickly. But they also are very particular about how they want things. Lol it's never your house again as long as you have cats.