Hi Kelly Ann,
You would know if you have external hemorroids, as they feel like little bulges/tags outside your anus.
If you don't feel bulges, I can only think that you have slighlty irritated the area around the anus causing it to bleed slightly. Soak in a bath and that should relieve it.
If you feel bulges, you can buy cream for hemorroids and that should relieve the itch.
Also try not to strain or sit too long on the toilet that can cause hemorroids
You need to get your stools softer to let your anus area get better and clean with warm water instead of toilet roll until it heals.
Obviously the biggest prevention of hemorroids/constipation is diet.
Drinking plenty water and eating plenty fruit/fibre.
Hope this info. helps in anyway