Your nephew loses blood through bleeding. The bleeding might be invisible to the eye, especially if it is in small quantities. For example, if the blood is lost in small quantities via the feces, then a fecal occult blood test might reveal the actual presence of blood in the feces. On the other hand, if the blood is from the mucosa of the upper gastrointestinal tract, then it might be digested.

By decomposing, no real blood would be visible in the feces. Instead, the byproducts of the decomposition of the hemoglobin would be present in the feces and they might even change the color of the feces to black.

The blood in the feces might be detected by a specialist in gastrointestinal diseases. Additional tests such as an endoscopy (gastroscopy or colonoscopy) might be needed to detect more precisely the source of bleeding..


Weak blood vessels walls might be a cause for continual blood loss. If the blood vessels wall is weak, then it might be damaged with a small force that would be otherwise harmless. Coagulation disorders might cause chronic blood loss. These are very easily detected by specific tests done by a specialist in hematology.


Treating the anemia would also make the blood vessels walls stronger. Depending on the type of anemia, iron, copper, or vitamin B12 might be needed. Please note that the substance that is actually missing has to be given long enough not only to improve the condition, but also to fill the natural body reservoirs. Otherwise, the anemia would return soon.