Foreign body reaction is a response of biological tissues to any foreign material when it comes in contact. These reactions can be due to either trauma or any foreign material used for treatment purposes. The various foreign body reactions due to iatrogenic causes includes due to suture material, prosthetic implants, glove powder, gauze piece etc. The events for foreign body reaction include protein adsorption, monocyte adhesion, macrophage adhesion and activation, macrophage fusion and foreign body giant cell formation.

Keywords: Foreign Body; Foreign Body Giant Cell; Gauze; Glove Powder; Prosthetic Implants; Suture Material.