are you constipated or having loose stool/diarrhea? If you are constipated try using miralax every day to regulate you. Miralax is not like a laxative like senna which is bad for you (because then your body relies it, you get melanosis coli... laxatives should never be used on a regular basis). Miralax is fine, though, it just adds bulk to the stool. Miralax has also been used for people with diarrhea, and again, to add bulk to the stool. Also one of the best things for constipation is drinking prune juice.
Sounds like you have irritation down there. Bright red blood means irritation down low.
Could be internal hemorrhoids, external hemorrhoids, anal fissure (but that would hurt like hell), or just plain old irritation of the skin.
Take sitz baths. Use witch hazel pads to wipe with. White toilet paper only. NO colored/perfumed toilet paper. No thongs. Just wear cotton underwear and at night sleep without underwear to let air get to the area.