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Rectal Bleeding Malaysia?
Blood in the stool can be bright red, maroon, black, and tarred or insidious (invisible to the naked eye). Blood causes in the stool include harmless gastrointestinal tracts, annoying conditions (such as hemorrhoids and anal lacerations (anal fissures)), constipated hard stools to severe conditions such as cancer. Blood in the stool should be evaluated by a health care professional.
Rectal bleeding (medically referred to as blood in the stool) refers to the bright red blood that flows from the anus and is often mixed with feces and / or blood clots. Most rectal bleeding comes from the colon, rectum or anus and may be associated with diarrhea. Blood color during rectal bleeding usually depends on the location of the gastrointestinal bleeding. Usually, the closer the bleeding point is to the anus, the blood becomes bright red. As a result, bleeding from the anus, rectum, and sigmoid colon tends to be bright red, while bleeding from the lateral and right colons (a few feet from the anus) tends to be dark red or maroon.
In some patients, the bleeding may be black and "tar-like" (thick) and smelly. Black, smelly and tarred stools are called black stools. Melanosis occurs when the blood in the colon is long enough for bacteria in the colon to break it down into black chemicals (hemoglobin). Therefore, black bees usually indicate that the bleeding is bleeding from the upper gastrointestinal tract (for example, bleeding from the stomach, duodenal ulcer, or small intestine) because blood usually exists in the gastrointestinal tract for a long time before leaving the digestive tract. body. Sometimes it causes melena due to bleeding from the right colon. On the other hand, blood in the sigmoid colon and rectum usually does not stay in the colon for long enough for the bacteria to black it out. Excessive bleeding from the right colon, small intestine, or stomach or duodenal ulcer rarely causes blood to pass quickly through the gastrointestinal tract and causes bright red rectal bleeding. In these cases, blood flows quickly through the colon so that the bacteria do not have enough time to darken the blood.
Sometimes gastrointestinal bleeding may be too slow to cause rectal bleeding or melena. In these patients, the bleeding is hidden (not visible to the naked eye). Blood can only be found by testing blood in the stool in the laboratory (fecal occult blood test). Occult bleeding has many of the same causes as rectal bleeding and can cause the same symptoms as rectal bleeding. It is usually associated with anemia, which is caused by the loss of iron in the blood (iron deficiency anemia).
Causes of rectal bleeding include hemorrhoids, anal fissure, proctitis, Crohn's disease, diverticulosis, ulcerative colitis, rectal ulcers, rectal prolapse, ischemic colitis, angiogenesis, rectal trauma, anal cancer, colon cancer , Proctitis caused by radiation therapy.
Rectal Bleeding: Possible Causes
Although rectal bleeding is common, only about one-third of patients seek treatment. Symptoms usually develop quickly, and most causes are curable, not severe. In some cases, rectal bleeding can be a symptom of a serious illness such as colorectal cancer. Therefore, all rectal bleeding should be reported to a primary care physician. He or she can have a rectal exam or a colonoscopy to determine the cause of the bleeding. Rectal bleeding can be caused by:
- Hemorrhoids
- Anal fissure
- Anal abscess or fistula
- Diverticulosis / diverticulitis
- Inflammatory bowel disease (IBD)
- Ulcer
- Large polyp
