What is complement deficiency? Complement deficiencies are a group of disorders, all of which have a deficiency in one or more complement proteins. Overall, the complement system helps with three important processes: inflammation, phagocytosis, and the creation of membrane attack complexes. Typically, complement deficiencies lead to recurrent bouts of infection or autoimmune reactions. To learn more, check out our video: http://osms.it/compl2f485 #Osmosis #learnmedicine #hematology | Osmosis fro