Thank you for posting your question here, I will try to answer it as best I can.
Blood on the toilet paper could be a result of you passing hard stools, this is usually a result of constipation
Another reason can be because of dehydration
, making your intestinal lining dry, so that when you used the toilet paper it got damaged easily.
It could also be because of the early stages of hemorrhoids, which isnt something to worry about if you follow the instructions I mention below.
As such drink more water and increase your fiber intake, also reduce caffeine intake.
I hope this answered your question