Have had blood on toilet tissue 5 weeks then stopped for 4 weeks now has been starting again slightly from hard stool 115lbs 19yo f healthy active ?

Blood on paper: Rectal blood is abnormal and must be explained, but in your case it probably is a benign situation from hard stool with possible anal fissure or hemorrhoids. Take a daily stool softener like colace, (docusate sodium) eat foods high in fiber and drink adequate fluids every day. If traces of rectal blood continue see your physician or a proctologist for evaluation and advice.