Color analysis and stool bleeding disorders

  First, the blood will mostly immediate bleeding, blood flowing extravascular very short time with the feces through the anus, or will be directly after the outflow。 Appearance similar to the blood flowing traumatic bleeding, red or purple color, dark red, after slightly longer time may be solidified into a clot。   Blood will often in the following diseases 1, hemorrhoids: the most common anorectal disease clinic, each internal hemorrhoids and mixed hemorrhoids can cause, usually accompanied by blood or stool and after blood。 External hemorrhoids are generally no stool bleeding。
  2, rectal polyps: anorectal outpatient than, the typical symptoms of low rectal polyps painless bowel bleeding。 Bleeding stopped after the end of defecation defecation, how much amount ranging generally not blood mixed with the stool, polyps or high position, quantity, can also be mixed manure。   3, rectal prolapse: general outpatient anorectal visible, typical symptoms of early red tumor prolapse outside the anus, bleeding may have a bowel movement after a long illness。   4, anal fissure: the performance of anal pain during defecation, and after a period of time。
Accompanied by blood in the stool, blood bleeding surface side manner with feces, does not mix with feces, blood and after some patients。   To determine whether the reason for the above diseases of blood in the stool, may be diagnosed by an electron microscope anorectal。 The reason Currently, some hospitals use of imported high-definition anorectal mirror, the lesion site can be enlarged several times, which can effectively find blood in the stool。   Second, discharge of pus and blood in the stool mean something to both of pus, but also with blood, blood leaner appearance, and sometimes contains a lot of mucus。
Bloody stools containing blood and pus or mucus, and are often found in cancer or colon inflammation intrarectal。
Here are some common diseases: 1, colorectal cancer: common outpatient anorectal。 Typical symptoms of anal discomfort, defecation, stool deformed, blood and pus, redness of the skin fresher or dark red, may have mucus in the stool, often blood, mucus, feces three mixed。   2, colon cancer: more common in outpatient anorectal。 Patients with early onset of bowel habits, such as increased frequency of bowel movements, may have abdominal pain, diarrhea or constipation, fecal gradually extended duration of bleeding, mostly containing bloody pus or mucus, bloody dark。   3, ulcerative colitis: outpatient anorectal rare。 Typical symptoms include prolonged mucus or pus, accompanied by lower left abdominal pain or abdominal pain。   Third, melena (tarry) refers to the stool was black or dark brown, also known as tarry, upper gastrointestinal bleeding one of the most common symptoms。 Mainly for upper gastrointestinal bleeding black stools, often accompanied by vomiting, palpitations, fatigue, anemia and other symptoms and signs。 When the small amount of bleeding, and slower blood longer residence time in the intestines, intestinal fluid discharged by the action of the stool that is black; if the amount of bleeding, shorter residence time in the intestines, the blood is discharged dark red; particularly large amount of bleeding, and may be quickly discharged when the bright red。