RESUMEN
Neuromyelitis optica (NMO-SD) or Devic disease is an acute transverse myelitis associated with an optic neuritis united -or bilateral. It is an inflammatory disease very disabling evolving by thrust. The long-term prognosis is also difficult to predict due to comorbidities which determine the evolution and the quality of life of patients. The objective of our study was to determine the different types of co-morbidities found in patients with NMO -SD.Methods: It was a descriptive study through a review of the literature on PubMed with the combination (Neuromyelitis optica, comorbidity). The data analysis was made on the software SPSS 23 Results: Total 27 articles were published and available on PubMed (June 2017). Among these 27 work we included ten (10) specific studies of co-morbidities in the NMO-SD. Three categories of illnesses have been reported in these 10 articles including coexisting diseases with the NMO-SD without any risk factor common or similar