A uterine manipulator is described that includes an elongated, hollow shaft having a proximal end and a distal end. The hollow shaft defines a channel and has a non-opaque distal tip. A handle is positioned on a proximal portion of the shaft and an inflatable balloon is supported on a distal portion of the shaft. The inflatable balloon is transitional from a deflated state to an inflated state. A cervical cup is movably positioned along the shaft from a distal position to a proximal position. The channel of the shaft is dimensioned to receive an endoscope to facilitate visualization of a body lumen through the non-opaque distal tip of the shaft. In embodiments, the cervical cup defines a rim that is positioned to abut the inflatable balloon when the cervical cup is in its distal position. The rim includes a plurality of distally facing lights that function to identify placement of the cervical cup in relation to the cervix.