Okay this is a bit of a yucky question but I need help

My Poppy goes poop regular and they are normal stools, not to hard not too soft but the thing is she always has bits stuck to her butt afterwards.
So nearly everytime she goes poopy I have to clean her butt and she hates it, she cries and wiggles but it has to be done!
She is very good going on her puppy pads and has only had a couple of accidents (wee wee's) but today I caught her trying to do a sneaky poop behind her bed and then again behind the chair!

I think she's trying to hide it from me because she dosnt want to get her butt cleaned.
Im not ruff or anything when I do it so please dont think that because I am gentle she just dosnt like to get her butt wiped

When she is much older (she is only 8 weeks) and ready to go to the groomers for the first time I will ask them to keep the fur on her butt short to try and stop poop getting stuck but what can I do in the mean time?
Thanks!