The article aims to present some notes of psychology about Munchausen syndromes (MS) and Munchausen by Proxy (SMPP), seeking to understand the terms and symptoms. And, later, provide subsidies to health professionals for a possible intervention and treatment. From a review of the literature, through consultation of electronic data and published books available, prioritizing the texts from 1999 to 2019 on the subject. It is observed that the literature points to Munchausen Syndrome as a more common pathology than is diagnosed affecting well-informed individuals about the medication to be used for the treatment of the disease they believe they have. While in Munchausen Syndrome by Proxy the victims are children usually taken to the health service by their mothers or guardians. Improvement in care becomes essential, especially when the victim is the child.