What symptom is commonly associated with the gastrointestinal infection caused by Entamoeba histolytica?

The symptom commonly associated with gastrointestinal infections caused by Entamoeba histolytica is diarrhea with blood. This amebic dysentery is characterized by the presence of blood and mucus in the stool, which occurs due to the organism's ability to invade the intestinal mucosa, leading to ulceration and inflammation. This type of diarrhea can be watery or mucoid but typically shows visible blood, which is a hallmark feature of the disease.

Entamoeba histolytica infections can lead to severe intestinal complications, and the bloody diarrhea is a significant clinical indicator that can help differentiate it from other gastrointestinal infections. The presence of blood indicates that the parasites are causing damage to the intestinal lining, resulting in more severe gastrointestinal symptoms compared to other causes of diarrhea that may be present without such symptoms.