| Stage | Description |
| T0 | Absence of primary tumor |
| Ta | Noninvasive papillary carcinoma (limited to mucosa) |
| Tis | Carcinoma in situ |
| T1 | Tumor invading subepithelial (invasion of the lamina propria) |
| T2 | Tumor with muscle invasion |
| T3 | indicates lesions that involve perivesical fat |
| T4 | Tumor invades adjacents organs |