Blood in the stool, a dangerous signal not to be underestimated---Public welfare science on digestive diseases 0088 stickers
2014-10-22 Gastroenterology popular science
The feces are dirty and smelly, so many people dismiss it after defecation. They don’t know that if you look back after defecation, you may find some diseases. The color of normal stool is yellowish-brown. If there is any abnormality, you should consider whether you are sick. Please pay attention to one situation, which is blood in the stool.
Blood is discharged from the anus, and the color of stool is bright red, dark red or tarry (black stool), which is called blood in the stool. The color of blood in the stool varies depending on the bleeding site, the amount of bleeding and the bleeding speed may vary. Stomach and esophageal hemorrhage is due to the action of gastric acid and exists for a long time in the intestine. The iron in hemoglobin combines with intestinal sulfide to form iron sulfide, so it appears as tarry stool; small intestine and colon bleeding due to the absence of the above factors, so Mostly dark red or bright red stools. Swallowing from bleeding in the mouth, nose, and trachea can also cause blood in the stool. Therefore, if you find blood in the stool, you must find out the cause and deal with it.
Common causes of blood in the stool are:
1. Peptic ulcer 2. Acute hemorrhagic necrotizing enteritis 3. Small bowel tumor 4. Intussusception 5. Intestinal tuberculosis
6. Ulcerative colitis 7. Colon polyps 8. Colon cancer, rectal cancer 9. Hemorrhoids and anal fissure 10. Hookworm disease 11. There are many other causes of blood in the stool. The more common ones are bacillary dysentery, typhoid fever and vice Typhoid fever, rheumatoid arthritis, etc. Certain drugs taken by mouth can also damage the gastrointestinal mucosa. For example, adrenal cortex hormones and aspirin can induce bleeding or hemorrhagic erosive gastritis, which can cause blood in the stool.
Discover the most hidden gastrointestinal bleeding-fecal occult blood test
When there is only a very small amount of bleeding in the digestive tract, there is no difference on the naked eye. At this time, a more precise method is needed to judge: fecal occult blood test, also called fecal occult blood test or occult blood test. The literal meaning is "hidden in stool In, invisible blood", the two letters "OB" are often used to represent the word "occult blood", which can be written as "feces OB". No blood will be excreted in the feces of normal people, so the occult blood test is negative. The stool occult blood test of patients with gastrointestinal bleeding and gastrointestinal ulcer is mostly positive, or shows intermittent positive. Patients with gastrointestinal tumors can be persistently positive (95% of cases), so the stool occult blood test can be used as a basic test for screening gastrointestinal tumors.
Bright red color: after defecation, if there is blood that is not mixed with the stool, the blood color is bright red, attached to the surface of the stool, or drips blood during the stool without pain, and sometimes a swelling protrudes outside the anus, which may be caused by internal hemorrhoids; Symptoms of hemorrhage and internal hemorrhoid bleeding are similar, but the stool is accompanied by severe pain in the anus; if the child has blood in the stool or dripping blood after the stool, the blood color is not mixed, the amount of bleeding is small, the frequency and nature of the stool have not changed significantly, most of which are caused by rectal polyps To.
The color is dark, black and bright: stools are black like tar, which is common in patients with bleeding from stomach and duodenal ulcers. This disease is often accompanied by periodic pain in the gastric cavity, heartburn, poor appetite, or worsening of pain before and after meals. In patients with liver cirrhosis, varicose esophageal veins rupture and bleeding, and tarry stools may also appear, but the patient has a history and symptoms of liver disease. Dizziness and fatigue are often accompanied by heavy gastrointestinal bleeding. When the condition is mild, the amount of bleeding is small, and the stool may not be black, but the stool occult blood test can detect bleeding. If you eat animal blood or blood tonics, black food, green leafy vegetables, etc., black stools will also appear, which will affect the effect of the occult blood test. Therefore, dietary factors must be excluded to determine the results of the occult blood test.
With mucus: stools are bloody and mixed with mucus, and then the stools are gelatinous, accompanied by fever, nausea, vomiting, abdominal pain, falling, and increased stool frequency but less volume, which may be caused by acute bacterial dysentery. Amoebic dysentery also has abdominal pain, falling, and increased stool frequency, but the stool volume is large and rancid, and it is sauce-black, and the stool culture has amoeba trophozoite cysts or protozoa.
Dark red and smelly: people aged 30-45 have blood in the stool, dark red blood mixed with stool, smelly smell, discomfort in the anus, falling, frequent stools, and always have a feeling of unclean stools, so they should be considered as rectum cancer. It is important to note that it is not uncommon for young people to suffer from rectal cancer. Patients in the early stage of the disease may have no symptoms. As the course of the disease progresses, the cancer gradually increases, and the intestinal wall protrudes. The lower abdomen gradually becomes painful, the feces become flat and thin, and even intestinal obstruction occurs.
Rectal cancer is similar to dysentery, chronic colitis and other symptoms. Many patients take self-administering drugs for dysentery as soon as they find the above symptoms, which makes the diagnosis of rectal cancer long delay.
In addition, blood system diseases such as leukemia, aplastic anemia, thrombocytopenic purpura, etc. can also cause blood in the stool. This blood in the stool is often accompanied by bleeding in other parts, such as nosebleeds, bleeding gums, and skin bleeding.
All in all, once blood is found in the stool, it is necessary to go to the hospital for examination in time to find out the cause and treat it in time. Inadvertent numbness and taking medication without authorization may delay the condition and miss the opportunity for treatment.