cat drags her bum on floor why?

[als30]

We have had our cat for 2/3 years shes a long haired noticed this evening she had been dragging her bum along the carpet was a small amount of mess on windowsill nothing major she has been fine all day
we have noticed this thing before a few month ago was alot though
it doesnt happen all the time we are thinking worms etc any advice or ideas
Vet getting called in morning

Worms usually for this.

Thats what we were thinking
if it is worms can we adults catch it or children ??

Blocked anal glands?. Poor puss.

ours does this when he goes to use the litter tray and the poo is stuck on the hair on the bum. DP usually cleans it and the cat goes back ot normal and starts washing.

Ours don't have worms they've both recently been to vets and were checked.

Worms? My cat did this once but it turned out she had a little bit of poo stuck to her butt .

Fluffy cloud is probably right. Blocked glands. Quick trip to the vet, moment's indignity for puss, all sorted.

She's challenging you to a bum dragging race.