Only mucus and a tiny amount of blood comes out when wiping after a bowel movement. What is this?

See your doctor. Any bleeding is a cause for concern. Please see your doctor. It is likely to be as simple as hemorrhoids, but even that needs to be treated.
Not normal. It is not normal to have bleeding and mucus in stool. If blood is bright red, it indicates "new" undigested blood. Mucus is never normal. See a GI specialist.