Patients with bladder cancer usually do not experience dizziness, but dizziness can occur under special circumstances. For example, when patients with bladder cancer have hematuria, which causes more bleeding, and when patients have anemia, it can cause dizziness. In this case, patients often have obvious history of bleeding, and dizziness can also occur when bladder cancer develops into distant organ metastasis, such as intracranial metastasis of bladder cancer, when dizziness, nausea, vomiting or coma can occur. Bladder cancer is also a serious digestive disease, and if it develops to a late stage, it has caused the body to be malnourished due to malignancy, which can cause general weakness and dizziness, and also anorexia. If there is no obvious bleeding and no obvious distant organ metastasis in early or middle stage bladder cancer, dizziness will not occur at this time. It is recommended to go to the hospital for other tests to clarify the cause of dizziness, such as blood pressure measurement and routine blood tests to find out whether there is hypertension or anemia.