Irritable bowel syndrome received a lot of synonyms, such as diarrhea nervosa, but the most suggestive name would be unhappy colon. Irritable Bowel Syndrome Patients with irritable bowel syndrome generally see a lot of doctors, from the family physician to the gastroenterologist or even surgeon due to fear of cancer, but also because of the long evolution of this disease. Usually, patients are concerned about the disease, anxious, depressed and often working under stressful conditions. Anxiety and depression are common in these patients so that they will present to the doctor a very thorough, detailed history of the disease, often with dramatic characters. The fund of this disease can be constipation, which can be linked to lack of fiber in the diet and sedentary lifestyle, with the appearance of mucus stools or diarrhea, which occur most often under stressful conditions. Irritable bowel syndrome is a functional disease, so organic lesions, detectable by laboratory techniques are absent. Irritable Bowel Syndrome Symptomatology Irritable bowel syndrome symptoms include: Abdominal pain, which can be diffuse or localized on colic tract. The pain may be dull, but often have the character of a cramp, lasting seconds or minutes. Sometimes the patient feels only abdominal discomfort. Symptoms often disappear during periods of relaxation; Intesinal transit disorders are common. Their main feature is alternation of constipation with diarrhea. Typically, the stool is hard, fragmented, covered with mucus.