A medical apparatus 1 includes: an image pickup apparatus 2 introduced and retained in a body 101 a retaining/fixing section 5 which contacts a body wall 102 in the body 101, for retaining and fixing the image pickup apparatus 2 at the body wall 102 and an observation direction control section 3 which changes an observation direction of the image pickup apparatus 2 and a plurality of operation wires 26-29 for operating the observation direction control section 3 from an extracorporeal side.
