Blood in the stool or rectal bleeding can be caused by a variety of conditions and diseases such as hemorrhoids, anal fissures, infections, ulcers, cancer, diverticulitis, colitis, or cancer. Bright red blood suggests a lesion in the rectum or anus. If blood is clearly separate from a stool, it indicates an anal lesion, usually haemorrhoids or a fissure – particularly if there are associated anal symptoms (for example, anal pain or pruritus ani) but, occasionally, other pathology (for example, proctitis or anal carcinoma). Hemmorhoids commonly cause bright red blood on toilet paper or in the bowl.
Seeing blood in the toilet, on the outside of your stool, or with wiping after a bowel movement is common. Bright red blood typically coats the stool or blood may drip into the toilet or stain toilet paper. As a general rule, bright red blood has been recently produced and means that the bleeding has come from the area around the anus. These can cause bleeding when passing stools, an itchy feeling around the anus and sometimes pain. Rectal bleeding may show up as blood in your stool, on the toilet paper or in the toilet bowl. Blood that results from rectal bleeding can range in color from bright red to dark maroon to a dark, tarry color.
If blood is coming from the rectum or the lower colon, bright red blood will coat or mix with the stool. The stool may be mixed with darker blood if the bleeding is higher up in the colon or at the far end of the small intestine. In medicine, when referring to human feces, blood in stool looks different depending on (1) how early it enters the intestines (and thus how much digestive action it has been exposed to) and on (2) how much there is (a little bit, more than a little, or a lot). This is why bright red blood in the stool has different clinical significance (and a different name) than brown or black blood in the stool. Thus the term can refer either to melena, with more blackish appearance, originating from upper gastrointestinal bleeding, or to hematochezia, with more red color, originating from lower gastrointestinal bleeding. Heavy or rapid bleeding in the upper GI tract can cause bright red stools. Eating black licorice, lead, iron pills, bismuth medicines like Pepto-Bismol, or blueberries can also cause black stools.
Blood In The Stool (rectal Bleeding) In Adults
Read about causes of rectal bleeding include hemorrhoids, anal fissures, polyps, tumors, trauma, and inflammation of the bowel. Diverticular bleeding causes a large amount of blood to appear in your stool. Bleeding starts suddenly and usually stops on its own. The blood may be dark red or bright red clots. In most cases there is no pain, and the bleeding stops on its own. Most often, blood in the stool is from piles (haemorrhoids), especially if it is bright red, fresh blood. Piles are like swollen veins in the back passage. Bloody diarrhea is often a sign of gastrointestinal bleeding due to injury or disease. Diarrhea that contains bright red or maroon-colored blood may be referred to as hematochezia, while melena is used to describe black, tarry, and smelly diarrhea. The watery diarrhea lasts for about a day. Then the diarrhea changes to bright red bloody stools. The infection makes sores in your intestines, so the stools become bloody. As mentioned, hematochezia is fresh, bright red blood in, or mixed with, your dog’s stool. Unlike in humans, in dogs fresh blood is not indicative of hemorrhoids.
Painless rectal bleeding with a bowel movement is a common symptom of hemorrhoids. Bright red blood typically coats the stool or blood may drip into the toilet or on the paper. Passing maroon-colored stools or bright red blood usually means that blood is coming from lower down in the large bowel or the rectum. However, sometimes massive bleeding in the stomach or small intestine can cause bright red bloody stools. If blood is coming from the rectum or the lower colon, bright red blood will coat or mix with the stool. The cause of bleeding may not be serious, but locating the source of bleeding is important. Maroon-colored stools or bright red blood usually suggests that the blood is coming from the lower part of the GI tract (large bowel, rectum, or anus). However, sometimes massive or rapid bleeding in the stomach causes bright red stools.
Hematochezia is the presence of bright red blood in the feces. Bright red blood is different that black tarry feces, which is usually associated with digested blood. Blood clots in the stool will often be accompanied by unclotted blood. If the unclotted blood is bright red, then the bleed is most likely lower in the gastrointestinal system, such as the colon or the rectum. Blood in the stool is not a normal finding, and can be quite a scary experience. Learn about the causes, treatment and diagnosis of blood in the stool.