Early to late stage of bladder cancer is as fast as 3 months, and slow may take several years, which varies from person to person, and needs to be analyzed with the type of tumor, treatment and so on. There is no very fixed time for bladder cancer to develop from early to late stage, basically every patient is different, it needs to be analyzed in combination with the type of pathology, treatment and the patient’s physical condition, etc., which is usually between a few months to a few years. For example, patients with highly malignant bladder cancer have a more rapid development of the disease, and if targeted treatment is not taken in time, the disease may reach the advanced stage in about 3 months; if it is a low malignant degree of bladder cancer, the development is much slower, and it will take a few years to reach the advanced stage when it is properly controlled, or it may not even reach the advanced stage. If bladder cancer is suspected or diagnosed, it is recommended to go to a regular hospital immediately for a comprehensive assessment of the condition, follow the doctor’s instructions, and choose the appropriate treatment plan to avoid delaying the condition.