[A case of diarrhoea by Clostridium difficile]

We present a patient who developed a pseudomembranous colitis due to Clostridium difficile with a prolonged course. The diarrhoea symptoms worsened after two hospitalisations, but there was an improvement with outpatient treatment. The first diagnosis was made in Primary Care. We summarise the preventive measures, and present the severity criteria of this condition, as well as the failure antibiotic treatment with metronidazole and the possible aggravation by the use of other antibiotics in these patients. The patient recovered from the diarrhoea episodes after prolonged treatment. As with this case, the family doctor should note that, sometimes after hospital admissions of frail patients, there may be diarrhoea caused by this microorganism. An early diagnosis, outpatient treatment with appropriate antibiotics, and the implementation of preventive measures can be used in the Primary Care setting.