ugh, why can't my Frisky groom himself properly?

I just don't understand this. At first I thought my dear sweet Frisky was just ill and that was the main explanation for this problem he's having. But now I'm wondering if indeed it's something else. I just honestly don't know any more! :'-( He seemed to be getting better and full of life and light and vibrant and has been cuddly, but we let him out of the bathroom for a little bit and icky icky icky he STILL has problems UGH! I just cleaned him a bit and examined him a bit ugh...I did find some more poops in his litter box yay thank goodness, but he still is a bit icky and is leaving gross smelly yuckie residues around ACK! I find this very frustrating and difficult to deal with and cope with. I will clean up a bit again and I'll see how that goes, but I could use some advice and suggestions. He's eating and drinking well and meows talks and even has enough strength to try to bust the door down! hehe okay, thank you for listening. Please help.

Frisky's Mom

Is he fluffy around his rear end?. That happend with Rosie once because she's quite fluffy around that region, so i clip away some fur so it doesn't stick anymore.

Frisky might have just walked in it and in the hot muggy weather, it sticks to him??? I once tamed a feral mama who had VERY long hair and she was utterly meticulous in grooming and the poor thing still would have stuff hanging. She finally would allow me to snip some - took awhile tho. Yours is not feral, I am sure he'll let you clip him and hopefully should be OK. If not, it could be something else and you might ask your vet?