The German Cancer Society said the black color of the faeces calls for immediate consultation with the doctor, as it foreshadows cancer of the bowel.
The association pointed out that black color is due to the presence of blood in the stool changes color to black because of chemical reactions in the intestine.
This is more likely to occur if other symptoms are present, such as severe abdominal pain, recurrent abdominal cramps, severe abdominal stiffness, persistent strong gas, foul stool, high abdominal sounds, palpitations, fatigue and depression. Effort weight loss.
The risk factors for bowel cancer include hereditary factors, as well as unhealthy lifestyle, ie smoking, drinking alcohol, high-fat nutrition, low fiber, and a proliferation of red meat.
In any case, your doctor should be consulted immediately to find out the cause of the black stool color and the necessary procedure.