This article deals with the peristaltic flow of biviscosity fluid in an endoscope. This study concentrates on the MHD characteristics and endoscope effects for peristaltic flow of a biviscosity fluid. Exact solutions are computed. The importance of pertinent flow parameters entering into the flow modeling is discussed. It is observed that increases in viscosity coefficient b, Hartmann number M and value of radius ratio e cause increase in all the pumping regions. (C) 2014 Production and hosting by Elsevier B.V. on behalf of Faculty of Engineering, Alexandria University.