How is diarrhea bleeding?

Blood discharged from anus or bloody feces is called bloody stool or bloody stool. Bloody stool is the manifestation of gastrointestinal bleeding. There are many reasons for hematochezia, and all diseases that cause hematemesis can have hematochezia. Lower digestive tract diseases, such as bacillary dysentery, Ami dysentery, ulcerative colitis, intestinal tuberculosis, colorectal cancer polyps or cancer, hemorrhoids, anal fissure, etc., can all cause hematochezia, among which hemorrhoid bleeding is the most common. The color of blood in stool varies with the bleeding site. Upper gastrointestinal bleeding caused by gastric and duodenal ulcers, the blood is mostly tar or black; Lower gastrointestinal bleeding, blood will be dark red or bright red.

First, when the stool is black or bright red, it is considered as bloody stool, and the following reasons should be excluded:

1. When some Chinese herbal medicines, charcoal agents, iron agents and button agents are taken orally, the stool is black.

2. When eating too much meat, pig liver, animal blood or spinach, the stool is black.

3. After oral phenolphthalein preparation, the stool is bright red.

Second, the classification of diseases and common diseases

1. Classification by lesion site

(1) Upper gastrointestinal bleeding: it is common in gastritis, gastric and duodenal ulcers, liver cirrhosis, esophageal and gastric tumors, etc.

(2) Lower gastrointestinal bleeding: common in anal fissure, hemorrhoids, anal fistula, chronic colitis, bacillary dysentery, amebic dysentery, colon or rectal polyps, tumors, etc.

(3) Systemic diseases: common in hematological diseases, uremia, typhoid fever, hemorrhagic fever with renal syndrome, leptospirosis, etc.

2. According to the characteristics of hematochezia.

(1) bright red, immiscible with feces: common in anal and rectal bleeding.

(2) Bright red, mixed with feces: It indicates lower gastrointestinal bleeding, including various inflammations and tumors.

(3) Black stool: It indicates upper gastrointestinal bleeding, including peptic ulcer, cirrhosis, inflammation and tumor.

You can go to the hospital for examination and symptomatic treatment.

Bloody stool is a special symptom of lower gastrointestinal bleeding, especially colon, rectum and anus, which indicates that there are organic lesions in the intestine, so we must attach great importance to it, make a clear diagnosis in time and pay close attention to treatment. The following diseases should be considered when the stool is bloody:

(1) Anal diseases

① Blood is bright red and painless, which is more common in internal hemorrhoids. Hemorrhoids in stage I are characterized by blood, and they often bleed because of rubbing the hemorrhoids with stool, and the blood keeps dripping, or a line is like an arrow, or only carries blood on toilet paper; Stage Ⅱ hemorrhoids have little or no bleeding in stool, and often flow from anus.

② Hemorrhagic stool in anal fissure is often accompanied by anal pain and typical periodic pain after defecation.

③ The main manifestations of anal canal cancer are bloody stool and pain, and the pain is aggravated before defecation.

(2) Rectal diseases

① The main symptom of rectal polyp is hematochezia, which is intermittent, bright red in color and generally small in quantity. This disease is very common among children.

② The main manifestations of rectal cancer are increased stool frequency, thin stool, mucus and blood, accompanied by acute internal emergency, heavy defecation or endless defecation. The blood in the stool is bright red or dark red in the early stage, and the amount is not much. In the later period, there are often smelly mucus in the stool, and weight loss should be paid great attention to.

③ Radioproctitis can also cause bloody stool, but there should be a history of radiotherapy.

(3) Colonic diseases

① Colonic polyp: A. Juvenile polyposis coli, with an average onset age of 6 years old and no family history, is characterized by blood, often accompanied by malnutrition, anemia, hypoproteinemia and growth retardation, and often accompanied by congenital malformations, such as intestinal malrotation, umbilical hernia and brain edema; B. Familial juvenile polyposis coli: there is a family history, and the common symptoms are bloody stool, rectal prolapse and growth retardation; c .Cronknite？ Kanda's syndrome (CCS) is a hamartomatous polyposis syndrome, which is formed in adults. It is characterized by bloody stool, diarrhea, heavy stool, fat, abdominal pain, anorexia, fatigue, vomiting, loss of libido, and loss of taste. Nails, hair loss and pigmentation almost always change.

② Colon cancer: It is common in left colon cancer. Patients often have intractable constipation, and occasionally the frequency of defecation increases. When the cancer breaks, blood or mucus can be stained on the outside of the fecal mass, and even pus can be discharged.

(3) Chronic nonspecific ulcerative colitis and bacillary dysentery: both of them have bloody stools, and most of them discharge mucus or pus at the same time, accompanied by abdominal pain.

(4) Amebic dysentery: As a result, blood is the main symptom, and its stool is sauce red, sticky and smelly.

(5) Hemorrhagic Escherichia coli enteritis: characterized by acute onset, accompanied by fever and diarrhea, with a history of carrion eating, often in the form of food poisoning.

You can go to the local hospital for a stool routine as soon as possible. Judging from the bleeding after defecation, it may still be hemorrhoids.