2. Diarrhea
It is one of the most common symptoms in patients with Crohn’s disease. They are usually progressive and manifest during the day or night, accompanied by anal pain, incontinence, and a feeling of incomplete deposition (tenesmus). The presence of scarce diarrhea may be indicative of an affectation of Crohn’s disease in the colon, since the cells that cover it become inflamed and are unable to absorb all the fluid, so the feces remain loose and watery or even wholly liquid. However, if diarrhea is abundant, it may indicate that the condition is located in the small intestine, and it is probably a secretory type of diarrhea caused by malabsorption of nutrients that may also lead to poor nutrition and weight loss.