Blood in the stool mixed with the stool

Introduction Blood in the stool refers to bleeding in the digestive tract, and blood is excreted from the anus. The discharged blood can be bright red, dark red or black. If it is a problem inside the intestine, you will see blood and stool mixed together. Common in intestinal bleeding and intestinal cancer. Common diseases are: acute hemorrhagic necrotic enteritis, intestinal tuberculosis, ulcerative colitis, etc., which are caused by different causes of intestinal mucosa congestion, edema, erosion, ulcer bleeding and even necrosis. It is characterized by pus and blood, blood and even blood. Mesenteric artery embolization or mesenteric arteriovenous thrombosis, intestinal torsion, intussusception, etc., due to intestinal membrane ischemia, necrosis, shedding, intestinal fistula, edema and massive serous exudation, full-thickness intestinal wall necrosis, massive bloody liquid infiltration Out, diarrhea can be seen to discharge dark red blood.

Cause

Internal problems in the intestine are common in intestinal bleeding and intestinal cancer.

an examination

Related inspection

Laparoscopic anal examination

Therefore, patients with blood in the stool and mixed blood and feces should be examined clinically:

First, physical examination

Taking a medical history gives us a first impression and revelation, and also guides us to a concept of the nature of the disease.

Second, laboratory inspection

Laboratory examinations must be summarized and analyzed based on objective data learned from medical history and physical examination, from which several diagnostic possibilities may be proposed, and further consideration should be given to those examinations to confirm the diagnosis. Such as: regular, laparoscopy.

Differential diagnosis

If the color is tarred or black, the blood is mostly from the upper digestive tract, but if the patient eats pig blood, Chinese medicine, etc., the stool may be black.

If it is purple-red, mixed with mucus and smelly, you should think of the possibility of rectal malignancy.

If the blood is bright red, it is mostly from the lower digestive tract.

Internal hemorrhoids, blood in the stool or blood drops, usually do not contain mucus, often constipation, no history of diarrhea and weight loss.

Intestinal malignant blood in the stool, early in the bright red or slightly dark color, the amount is not much, is intermittent, often have a history of constipation and increased frequency of defecation, and often mixed with stench mucus in the late stage.

Rectal polyps and blood in the stool, showing a bright red, a large amount, more common in young adults, long, low rectal polyps, can be taken out of the anus.

The blood in the stool of ulcerative colitis is mucinous bloody stool, often accompanied by lower abdomen and lower left abdominal pain. Colonoscopy and X-ray barium enema can be clearly diagnosed.

Anal fissure: blood attached to the surface of the feces or hand-dyeded blood, less bleeding, such as more bleeding, blood stored in the intestinal lumen, can be black, dark red or have blood clots when discharged.

In the high intestinal bleeding, you will see brick red stools, and it will be mixed with blood.

Patients with colorectal cancer have blood in the stool, which is characterized by dark red blood in the stool, or mucous pus and blood, or blood mixed with stool. Adults with blood in the stool, accompanied by lower abdominal bulge or anemia and weight loss should be alert to colorectal cancer.

More than half of colorectal cancer is located in the rectum. The length of the rectum is about 15 cm, and 65% to 75% of rectal cancers occur in the lower 2/3. When rectal cancer develops to the middle and late stages, the blood in the stool is mostly dark red, showing persistence. Chronic mucus and bloody stools, and often mixed with feces, there are pus and blood or mucus bloody stools mixed with feces, sometimes accompanied by blood clots and necrotic tissue.

Most of the esophagus, stomach, duodenum and other upper digestive tract and liver, biliary tract, and pancreas are brown or tar-like.

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