my cats brown stripe

Question
Hello, Melissa!  Hope all is well.  

I am the owner of a 7.5-year old nuetered male black cat with medium-length fur.  He has been an outdoor cat for most of his life, but became an indoor cat 1 year ago after a dog attacked him(he has completely recovered).  I have a large, covered litter pan in the bathroom for him to use, and he does so normally on most occasions.  The only issue that arises is his habit of dragging his butt across the bathroom floor(sometimes leaving a brown stripe for me to clean up) after he exits the litter pan.  He has, on a couple of occasions, left a brown stripe on the carpet in the hall beside the bathroom door.  Fortunately, this is a rare occurance, but I find evidence of his actions maybe once a month.  I have caught him in the act only twice(he is actually very skillful in kicking his back legs up and sliding effortlessly across the linoleum), and told him "no" as I stopped his forward movement.  I assume this is something he used to do in the grass whenever he felt he had something left over after a poop. Even though he seldom does this, I would love to have a solution to keep me from having to clean the floor/carpet every 4 or 5 weeks. He does not show any signs of discomfort from anything at all and appears to be healthy and happy.

Thank you for any assistance you can provide!

Answer
Here are reasons why a cat will scoot: he had full anal glands or he has other irriation on his anus that is causing discomfort, including having worms. If your next question is what are anal glands, here is the answer: they are ducts at two points on the anus and can become clogged after a period of time if the pet is not able to express them himself when he defecates (poops).

So my next question is, has he seemed to be constipated? Or has his stool seemed hard? When a cat is constipated, that can leave him feeling irritated as well. And hard stool is a sign of constipation. Or have you noticed any possible worms in his stool or on his anus? Regardless, I think it's time for a visit to your vet.

Keep me posted.