Is bladder cancer hereditary?

Usually not. : The vast majority of bladder cancers are linked with environmental factors, especially smoking. Many epidemiologic studies have looked at the role of genetics as risk factors. In most studies, there has been a small increase in risk in relatives, particularly in those who developed the disease before age 60. But the risk is greatly magnified in those who smoke, indicating a stronger smoking link.

No: Tobacco and environmental exposures to dyes for urothelial cancer; schistosoma hematobium, a parasite in egypt and chronic csatheterization for squamous cancr, and adenocarcinoma related to remnants of the urachus, the foetal conduit of urinary exretion through umbilicus into placental circulation...In this last case one might say "inborn error" but not genetic or hereditary.