Last autumn, I occasionally had blood in my stool, and occasionally my anus would catch up. I went to the hospital to check my fingers and anoscope and said nothing, and then I didn't ask normally thi

Last autumn, I occasionally had blood in my stool, and occasionally my anus would catch up. I went to the hospital to check my fingers and anoscope and said nothing, and then I didn't ask normally this spring. 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 often bleed because of rubbing hemorrhoids with stool, and blood keeps dripping, or a line is like an arrow, or blood is only 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 polyps:

A juvenile polyposis coli, with an average age of 6 years 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 Canda syndrome (CCS): It is a hamartomatous polyposis syndrome, which is formed in adults, with bloody stools, diarrhea, heavy defecation and fat, accompanied by 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. It is recommended to go to the hospital for examination and not to take medicine easily. It is a three-point poison, and the treatment must be completed under the guidance of a doctor.