Depending on the cause of the bleeding, your rectal bleeding can actually stop on its own. However, you need to pay attention to your body and keep track of the bleeding. If it happens one time and then, take note of it, but it most likely isn't an emergency. So check out this link to find out when to worry about blood in stool
If you have heavy rectal bleeding or are regularly seeing blood, reach out to your healthcare provider to get immediate care. It’s always a good idea to let your healthcare provider know about any rectal bleeding you have experienced.