If taste receptors seem out of place anywhere other than the mouth, this is only because they were first found in taste buds on the tongue, says neurobiologist Thomas Finger, co-director of the University of Colorado's Rocky Mountain Taste and Smell Center in Aurora.
Symptoms may include abdominal pain, vomiting, rectal pain and diarrhea. Left untreated chronic and ongoing blood in the stool can lead to severe blood loss over time (anemia). Symptoms of anemia can include weakness, dizziness, hypotension, fainting and shortness of breath. Blood in the stool may also occur without other noticeable symptoms.
Iron-deficiency anemia can put children at greater risk for lead poisoning and infections. Some signs and symptoms of iron-deficiency anemia are related to the condition's causes. For example, a sign of intestinal bleeding is bright red blood in the stools or black, tarry-looking stools.