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Hello, glad to answer for you :
Black hematochezia is a manifestation of upper gastrointestinal bleeding.
When there is bleeding in the upper gastrointestinal tract such as the esophagus, stomach, duodenum, upper jejunum, pancreas and biliary tract, the iron of hemoglobin in red blood cells combines with sulfide to form iron sulfide under the action of intestinal bacteria, so that the stool appears black, that is, blood in the stool is black. This black stool is black and shiny, and its appearance is like tar, so it is also called tarry stool. Tarry stool is a manifestation of upper gastrointestinal bleeding.
However, it is important to note that the black color of blood in the stool is only a typical manifestation of upper gastrointestinal bleeding. The change in the color of the stool during upper gastrointestinal bleeding is not uniformly tarry, but very different. For example, when the amount of bleeding is relatively small, the change in stool color cannot be detected by the naked eye, and it can only be detected by special tests (such as a stool occult blood test); When the amount of bleeding reaches more than 50 ml, the stool can be seen to turn black with the naked eye.
Black blood in the stool is not only upper gastrointestinal bleeding.
Black hematochezia is a manifestation of upper gastrointestinal bleeding. It has been calculated that about half of the patients with upper gastrointestinal bleeding are bleeding due to ulcer disease, and about three-quarters of them bleed duodenal ulcers. In addition to ulcer disease, acute and chronic gastritis, cirrhosis of the liver with ruptured esophageal or gastric varices, gastric cancer, and stress ulcers are also common causes of upper gastrointestinal bleeding.
Therefore, when melena occurs, in addition to considering whether it is bleeding for ulcer disease, it is also necessary to be alert to the presence of these diseases.
I wish the patient a speedy **!
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You need to go to the gastroenterology department of the hospital for a detailed examination, the problem may be very serious, be sure!
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What is going on with black stool with blood in the stool Black and bloody stool indicates gastrointestinal bleeding, possibly upper gastrointestinal bleeding. Because lower gastrointestinal bleeding is blood in the stool, the stool is not black, and the bleeding is often more abundant, and a small amount of bleeding is often only black and there is no blood. If there is black stool and blood, it is very dangerous, and there is a risk of hemorrhagic shock due to bleeding, so you should seek medical attention in time, improve blood routine, stool routine, gastroscopy, biochemical examination, etc., make a clear diagnosis, find out, and find out the cause. :
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Mellena may be gastrointestinal bleeding, bleeding from the broken area of the peptic ulcer, generally the amount of bleeding greater than 5ml can cause melena, and the amount of bleeding greater than 50ml will have black stool at the same time, often accompanied by dark red bloody stool. Some middle-aged and elderly people with anemia + melena should be more alert to the possibility of digestive tract tumors.
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Black stools may be caused by anemia.
There are many causes of anemia: iron deficiency, hemorrhage, hemolysis, hematopoietic dysfunction, etc. Generally, a diet rich in nutrients and high calories, high protein, multivitamins, and rich in inorganic salts should be given to help restore hematopoietic function.
Such as: all kinds of meat, poultry eggs, animal liver, kidney, etc.; Kelp, seaweed, black sesame seeds, tahini paste, black fungus, shiitake mushrooms, beans and their products. The absorption rate of iron from animal foods (20%) is significantly higher than that from plant foods (1%-7%).
Dietary taboos: 1. Avoid drinking tea after meals: tea and persimmons contain tannic acid, and encountering iron-containing foods can precipitate iron and affect iron absorption. 2. Avoid eating too cold and coarse food that affects the function of the spleen and stomach, thereby affecting the absorption of iron.
Don't be afraid, friends, I'm in this situation too, especially when I get up in the morning, I have phlegm or black, as you said, it's too much smoking, I'm ready to quit smoking now, and a friend of mine didn't have this phenomenon after quitting smoking.
The red color of the chicken paw blood comes from the hemoglobin in the red blood cells, which varies depending on the oxygen content of the red blood cells. Arterial blood with a high oxygen content is bright red; venous blood with little oxygen is dark red; If it contains more methemoglobin or other hemoglobin derivatives, it will be purple-black. >>>More
Mela, also known as tarry stool, is generally caused by bleeding from the upper and lower gastrointestinal tracts; Gastric cancer, peptic ulcer, erosive gastritis and the elderly with cardiovascular and cerebrovascular diseases can also cause upper gastrointestinal bleeding if they take aspirin; Therefore, if black stools appear, you must seek medical attention in time.
First look at whether there is anything black in your diet, such as pig blood, etc.; In addition, if you have an irregular diet or a disrupted lifestyle, it will cause abnormal stools. If you can go and check your stool. Then it is to regulate intestinal function, promote digestion, absorption and metabolism, you can eat fructooligosaccharides to regulate intestinal function, regulate intestinal microecological balance, accelerate intestinal peristalsis, discharge putrefaction, reduce the absorption of intestinal toxins by the human body, promote the contraction of intestinal wall, regulate intestinal microecology, correct intestinal dysfunction, improve constipation and maintain intestinal tract.
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