Why is there blood in diarrhea?
Bloody diarrhea is a symptom that requires great attention and may be caused by a variety of diseases. This article will combine the hot medical topics on the Internet in the past 10 days to provide you with a detailed analysis of the common causes, accompanying symptoms and countermeasures of bloody diarrhea, and provide structured data reference.
1. Common causes of bloody diarrhea
| Cause classification | specific disease | Typical characteristics |
|---|---|---|
| Infectious diseases | Bacillary dysentery, amoebic dysentery, norovirus infection | Fever + purulent and bloody stools + tenesmus |
| inflammatory bowel disease | Ulcerative colitis, Crohn's disease | Chronic diarrhea + mucus, pus and bloody stools + abdominal pain |
| gastrointestinal bleeding | Hemorrhoids, intestinal polyps, intestinal cancer | Bloody/black stool + weight loss |
| other reasons | Antibiotic-associated diarrhea, ischemic enteritis | Medication history/cardiovascular history |
2. Related topics are hotly discussed across the Internet (in the past 10 days)
| Hot search keywords | search index | associated symptoms |
|---|---|---|
| norovirus diarrhea | 85,000+ | Vomiting + watery stool |
| Early signs of bowel cancer | 62,000+ | Blood in the stool + change in bowel habits |
| antibiotic diarrhea | 38,000+ | Mucus and bloody stools after taking medication |
| Hemorrhoids and bloody stools | 120,000+ | Blood attached + anal pain |
3. Clinical significance of different characteristics of hematochezia
1.bright red bloody stool: Mostly indicates lower gastrointestinal bleeding (hemorrhoids, rectal lesions), and the blood has not been digested
2.Dark red bloody stool: May originate from the colon, common in inflammatory bowel disease or infectious diarrhea
3.tarry black stool: Characteristics of upper gastrointestinal bleeding, need to be alert to gastroduodenal ulcers
4.Mucus, pus and bloody stool: Typical manifestations of bacillary dysentery, often accompanied by fever and abdominal pain
4. Early warning signs that you must seek medical treatment immediately
| Danger symptoms | possible disease | Urgency |
|---|---|---|
| A lot of bloody stool | Massive gastrointestinal bleeding | ★★★★★ |
| High fever + confusion | severe infection | ★★★★ |
| progressive wasting | malignant tumor | ★★★ |
| Lasts more than 48 hours | Various severe diseases | ★★★ |
5. Diagnostic examination recommendations
1.laboratory tests: Blood routine + stool routine + culture (to distinguish infection from non-infection)
2.Imaging examination: Abdominal CT (diagnosis of intestinal obstruction/tumor)
3.endoscopy: Colonoscopy (gold standard for diagnosis, biopsiable)
4.Other tests: Coagulation function, tumor markers, etc.
6. Daily precautions
1. Record the frequency, color and accompanying symptoms of blood in the stool
2. Avoid using hemostatic drugs to cover up the condition
3. Keep the anal area clean to prevent infection
4. Choose low-residue, easy-to-digest foods.
5. Regular bowel cancer screening is recommended for people over 50 years old
Note: The data in this article are compiled from authoritative medical websites and search engine popularity statistics. Please follow your doctor’s advice for specific diagnosis and treatment. When symptoms of bloody diarrhea occur, it is recommended to go to the gastroenterology department or emergency department in time. Early diagnosis and early treatment are the key.
check the details
check the details
en
