Currently, Bladder Cancer Molecular Taxonomy Group proposes a molecular phenotype classification of bladder cancer, divided into 6 subtypes: luminal papillary, luminal nonspecified, luminal unstable, stroma-rich, basal / squamous, and neuroendocrine-like, which helps to the addition and reclassification histopathology of bladder cancer, as well as relates to clinical features, survival prognosis, and treatment.