A medical imaging apparatus includes: a casing connected to an insertion portion inserted into a subject and the casing configured to capture a subject image from the subject, the casing being gripped by a user； an operating device provided on an outer surface of the casing and including a button configured to receive a user's operation； a transmissive member having translucency and configured to seal the casing by being provided in the casing； a light emitting element provided in an internal space of the casing sealed by the transmissive member and configured to emit light for illuminating the operating device via the transmissive member； an image sensor configured to capture the subject image； and a lens unit configured to form the subject image on the image sensor.
