1. The digestive tract:
The digestive tract refers to a pipe system from the esophagus to the anus, including the esophagus, stomach, duodenum, jejunum, ileum, colon, rectum, and anus.
2. Digestive tract bleeding:
When it comes to gastrointestinal bleeding, the digestive tract is first divided into two parts. In medicine, the digestive tract is generally divided into upper and lower digestive tracts.
1. Upper digestive tract: including esophagus, stomach, duodenum, and proximal jejunum. In addition, biliary bleeding also belongs to upper gastrointestinal bleeding. Upper gastrointestinal bleeding is mainly manifested as melena, that is, the color of stool is black, and when the amount of bleeding is large, it is dark red or bloody stool; it also manifests as hematemesis, vomiting blood or coffee-colored liquid.
2. Lower digestive tract: including the distal jejunum, ileum, colon, rectum and anus. Lower gastrointestinal bleeding is mainly manifested as bloody stools, dark red, or bloody stools.
Gastroscopy and colonoscopy are the first choice. Don't be afraid of the examination, they can generally be tolerated, and if necessary, a painless examination can be done.
Upper gastrointestinal bleeding: gastroduodenal ulcer, cirrhosis and portal hypertension, erosive gastritis, gastric cancer, biliary bleeding.
Lower gastrointestinal bleeding: hemorrhoids, anal fissures, polyps, tumors, inflammatory lesions.