There is blood in the shit

Blood in the stool is a very common symptom. This symptom is likely caused by lower gastrointestinal diseases, lower gastrointestinal vascular diseases, or systemic diseases. Since there are many diseases that may cause this symptom, if you have blood in your stool, you must go to the hospital for a detailed examination first, so as to determine the cause and then carry out effective treatment based on the cause.

1. Lower gastrointestinal tract diseases

1. Anal canal diseases: Hemorrhoidal bleeding is caused by increased intra-abdominal pressure during defecation, which leads to increased blood pressure in the hemorrhoidal venous plexus, and direct abrasion by hard feces causes hemorrhoid rupture. Anal fissures can be seen in children due to anal worm infection, which causes pain and itching around the anus. Scratching the infection can cause severe pain during bowel movements, accompanied by small amounts of bright red blood in the stool. Anal atrophy is most commonly secondary to anorectal abscess, and rarely secondary to intestinal tuberculosis. The external anal opening can be seen near the anus, perineum or tail of the anus, and pus can be seen flowing out of the anal opening by squeezing the surrounding area.

2. Intestinal inflammatory diseases: such as acute bacillary dysentery. Acute hemorrhagic necrotizing enteritis, intestinal tuberculosis, ulcerative colitis, etc. are all caused by congestion, edema, erosion, ulcer bleeding and even necrosis of the intestinal constriction in different parts due to different causes. It manifests as pus and blood in the stool, bloody stool or even fresh blood in the stool.

3. Intestinal tumors: Colon cancer, rectal cancer, intestinal malignant lymphoma, etc. are mainly caused by the rupture of cancer tissue or lymphoma tissue, which manifests as bright red bloody stools or bloody stools accompanied by magnetic fluid and pus.

Benign small intestinal tumors, such as intestinal neurofibroma and leiomyoma. Adenomas and other tumors cause less bleeding, but larger tumors can cause intestinal obstruction. Infection and rupture of small intestinal hemangioma can cause acute massive bleeding.

2. Vascular diseases of the lower gastrointestinal tract

Ischemic bowel disease is common in mesenteric artery embolism or thrombosis, mesenteric vein thrombosis, venous thrombosis, intussusception, intestinal torsion, vascular malformations, etc.

3. Systemic diseases

1. Acute infectious diseases: hemorrhagic fever, leptospirosis, etc.

2. Platelet factors and coagulation mechanism disorders: thrombocytopenic purpura, leukemia, aplastic anemia, hemophilia, etc.

3. Uremia.

4. Connective tissue diseases: systemic lupus erythematosus, dermatomyositis, polyarteritis nodosa.