The prevalence of mental disorders makes mental health a significant public health problem given that they affect more that one in four people during their life span. Four of the five main causes for Years lost due to Disability (YLD) for 15-44 year olds' are mental disorders. Various effective treatments are available; however, their use poses a few noteworthy problems. This article puts forth an inventory on the principal mental disorders recognised at the international and national levels and extracts and highlights the main challenges associated with mental health care from the scientific literature. The synthesis concludes with a presentation of recommendations made in order to confront these difficulties and by outlining some of the national actions currently under preparation.