Hello! Thank you for the query. Bright red blood on the surface of the stool or on the toilet paper is very characteristic for hemorrhoids. Due to constipation, bad diet, steady lifestyle, veins gets enlarged in the rectal area what causes hemorrhoids. When wiping, you get hemorrhoids wounded so it gives a blood. I suggest you to start with diet improvement. Increase fiber rich products and mineral water intake. Avoid fatty foods. Start probiotic supplementation. Remember to wash your rectum after every stool. If this wont help, you should consult a surgeon and have rectal examination. Hope this will help. Regards.