If you have painless bleeding
it may be due to piles. If it is painfull then it may be due to anal fissure
. And some more etiologies may be the underlying factors for your rectal
bleed. Things you can do on yourself to correct your problem are-
1. Take plenty of fluids and fiber diet
2. Avoid unnecessary stress
3. Sleep early and try to take laxative at the time of sleep. If it is more distrubing, its better to consult general surgeon
. If you neglect this it may turn into chronic issue.