I will discuss a couple of them. Having Hemorrhoids is one of them. Hemorrhoids are usually caused by strainig to evacuate hard, dry stools. Sometimes hemorrhoids are a result of having children.
Hemorrhoids can cause pain in the rectal area, itching, discomfort and bleeding.
Blood noted when wiping can also be a sign of a more serious condition, like cancer. I hope this information will help you to convince your mother to see a physician for an exam.