Hemorrhoids — Hemorrhoids are swollen blood vessels in the rectum or anus that can be painful, itchy, and can sometimes bleed (figure 1).
If blood pools in an external hemorrhoid and forms a clot (thrombus), Rectal bleeding can occur with other diseases, including colorectal.
Hemorrhoids, also called piles, are enlarged veins in your rectum and anus. For some, they don't cause symptoms. But for others, they can lead.
Rectal bleeding may be hidden and the pelvis can cause inflammation.
A person can sometimes treat bleeding hemorrhoids at home. Hemorrhoids are swollen blood vessels in and around the anus and rectum.