Health and social care professionals, such as doctors, nurses, physiotherapists and social workers, need to work together effectively to take care of patients effectively. Unfortunately, professionals may not always work well together. Training and educational programmes have been developed as a possible way to improve how professionals work together to take care of patients. Interprofessional education (IPE) is any type of educational, training, teaching or learning session in which two or more health and social care professions are learning interactively. This review found six studies that evaluated the effects of IPE. Four of these studies found that IPE improved some ways in how professionals worked together and the care they provided. It improved the working culture in an emergency department and patient satisfaction; decreased errors in an emergency department; improved the management of the care delivered to domestic violence victims; and improved the knowledge and skills of professionals providing care to mental health patients. But two of those four studies also found that IPE had little to no effect on other areas. Two other studies found that IPE had little to no effect at all. The studies evaluated different types of IPE and were not of high quality. It is, therefore, difficult to be certain about the effect of IPE and to understand the key features of IPE to train health and social care professionals to work together effectively.