How long can a persn live with invasive bladder cancer without treatment (t1g3)?

T1: T1 bladder cancer, invasive of the lamina propria, is generally easily treated. It would, in most cases, be malpractice not to treat it, and therefore, discussion of natural progression without treatment is not terribly productive, although greater than 50% would likely progress to muscle invasive disease.

Bladder ca: Nobody can predict. Grade 3 has a higher chance of recurrence and progressive. Treatment is highly recommended but nodoby can accurately tell you a time line in this areas. It could be months to years before someone could die depending on the cancer.