A urological instrument (1) for assessing a urine flow, includes a receiving member (5) for the urine flow which, at least during operation, is in open liquid communication with a urine guide (6). The urine guide (6) leads to an inlet of flow indicator element (7) for assessing at least a magnitude of the urine flow. The receiving member (5) has a first, relatively compact storage state and a second, expanded ready-to-use state and is designed and adapted to allow it to be brought manually from the storage state to the ready-to-use state. At least in the ready-to-use state the receiving member comprises a cavity open on at least one side for receiving the urine flow therein.