Feces are dirty and smelly, so many people disregard them after defecation, not knowing that a quick glance back after a bowel movement may reveal some diseases. The normal color of stool is yellow-brown, if there is a difference, you should consider whether you are suffering from a disease, a condition please be sure to pay attention to, is the blood in the stool.
Blood is discharged from the anus and the color of the stool is bright red, dark red or tar-like (black stool), all of which are called blood in the stool. The color of blood in the stool can vary depending on the site of bleeding, the amount of bleeding and the speed of bleeding. Gastric and esophageal bleeding is characterized by tarry stools because the iron in the hemoglobin combines with sulfide in the intestine to form iron sulfide due to the action of gastric acid and its presence in the intestine for a longer period of time; small intestine and colon bleeding is mostly dark red or bright red stools because the above factors do not exist. Bleeding from the mouth, nose, and trachea can also cause blood in the stool if swallowed. Therefore, it is important to identify the cause of blood in the stool and deal with the cause.
The common causes of blood in the stool are
1, peptic ulcer
2.Acute hemorrhagic necrotizing enterocolitis
3.Small intestine tumor
4, intestinal overlap
5.Intestinal tuberculosis
6.Ulcerative colitis
7.Colonic polyps
8.Colon cancer, rectal cancer
9.Hemorrhoids and anal fissure
10.Hookworm disease
11.Other
There are many other causes of blood in the stool, the more common are bacterial dysentery, typhoid and paratyphoid, rheumatoid arthritis, etc.. Oral administration of certain drugs can also damage the mucosa of the digestive tract, such as adrenocorticosteroids, aspirin, etc. can induce bleeding from damage to the mucosa of the digestive tract or hemorrhagic erosive gastritis, thus causing blood in the stool.
Detecting the most insidious GI bleeding —- Fecal occult blood test
When there is only a very small amount of bleeding in the digestive tract, there is no difference to the naked eye, so a more precise method is needed to determine this: the fecal occult blood test, also called fecal occult blood test or occult blood test, which literally means “invisible blood hidden in the feces”. In normal people, no blood is excreted in the feces, so the occult blood test is negative. Patients with gastrointestinal bleeding and peptic ulcers tend to have a positive fecal occult blood test or show intermittent positivity. Patients with gastrointestinal tumors can be persistently positive (95% of cases), so the fecal occult blood test can be used as a basic screening test for gastrointestinal tumors.
Self-identification
1. Bright red color: After defecation, if blood is found and not mixed with stool, bright red color, attached to the surface of stool, or blood drips during stool without pain, sometimes there is a swelling out of the anus, this may be caused by internal hemorrhoids; anal fissure bleeding and internal hemorrhoid bleeding symptoms are similar, but accompanied by severe anal pain during stool; if children have blood in stool or blood drips after stool, the blood color is not mixed, the bleeding volume is small, and the number and nature of stool do not If children have blood in the stool or blood dripping after the stool, the color of blood is not mixed, the amount of bleeding is small, the number of stools and the nature of no significant change, mostly due to rectal polyps.
2, dark and shiny color: black stool like tar, common in patients with bleeding gastric and duodenal ulcers. This disease is mostly accompanied by periodic stomach and epigastric pain, heartburn, poor appetite, or pain before and after meals. Bleeding from ruptured varices of the esophagus in patients with cirrhosis may also present with tarry stools, but the patient has a history and symptoms of liver disease. Gastrointestinal bleeding is often accompanied by dizziness and weakness when the amount of bleeding is high. In milder cases, the bleeding is small and the stool is not necessarily black, but a fecal occult blood test can detect the presence of bleeding. If you eat animal blood or blood tonic, black food, green leafy vegetables, etc., there will also be black stool, affecting the effect of the occult blood test, so to determine the results of the occult blood test must exclude dietary factors.
3, with mucus: stool with blood and mucus mixed, followed by a gelatinous stool, accompanied by fever, nausea, vomiting, abdominal pain, falling, the number of stools increased but the amount is small, may be suffering from acute bacterial dysentery. Amoebic dysentery also has abdominal pain, cramps, stools increased, but the amount of stool and putrid, black, stool culture with amoebic trophozoites encapsulated or protozoa.
4.Dark red and fishy: If a person aged 30-45 years old has blood in the stool, dark red blood mixed with stool, fishy odor, anal discomfort, falling, more frequent stools, and the feeling that the stool cannot be purged, then rectal cancer should be considered. Special attention should be paid to the fact that it is not rare for young people to suffer from rectal cancer. As the disease progresses, the cancer gradually increases and protrudes from the intestinal wall, resulting in pain in the lower abdomen, flattening and thinning of the stool and even intestinal obstruction.
The symptoms of rectal cancer and dysentery, chronic colitis, etc. are similar, and many patients take drugs for dysentery as soon as they find the above symptoms, which delay the diagnosis of rectal cancer for a long time. In addition, diseases of the blood system, such as leukemia, aplastic anemia, and thrombocytopenic purpura, can also cause blood in the stool. This kind of blood in the stool is often accompanied by bleeding from other parts of the body, such as nosebleeds, bleeding gums, bleeding skin, etc.
In conclusion, once you find blood in your stool, it is important to go to the hospital promptly for examination, clarification of the cause and timely treatment. If you are paralyzed and take medication without permission, you may delay the condition and miss the time for treatment.