The bladder tumour is marked by the fact that it only shows symptoms when in the further stages of development.
In the very early stages, however, microscopic amounts of blood can be found which can be discovered by a corresponding urine analysis.

Bladder tumours, especially the highly aggressive ones shed the nuclear matrix protein.
With a corresponding test, it is possible to ascertain this nuclear matrix protein so that a bladder carcinoma can be discovered in its early stages.