Li Jingsheng's gaze slightly sharpened, and his expression became serious.
Bloody stool often indicates gastrointestinal bleeding.
If it is upper gastrointestinal bleeding, the discharged stool is often black. Because the fresh blood produced gets absorbed in the lower gastrointestinal tract, by the time it is expelled, it has turned black and mixed with the stool.
At this point, a routine stool examination often shows positive occult blood.
In fact, you can tell just by looking.
The uncle is just an ordinary person, not a doctor. When he discovers blood in his stool, it's nine out of ten times not black stool, but directly mixed with fresh blood.
Based on this information, Li Jingsheng's Master Level Gastroenterology diagnosis initially determined that the patient likely had a lower gastrointestinal bleed.
As for which part is bleeding, imaging tests are a good option.
