How long it takes for a bladder tumor to grow from 1cm to 2cm is related to the degree of differentiation of the tumor, the body’s own immunity, nutritional status and so on. Bladder tumor is a common malignant tumor in the urinary system, and its development speed is not absolute. If it is a low-differentiated bladder tumor, the growth rate is usually faster, and the tumor grows 1cm generally in about one year. If it is a highly differentiated tumor, the growth rate is slower and the tumor takes relatively longer time to grow. If the patient has stronger immune system, good physical quality in the past, better mental state and optimistic mentality, the tumor growth rate may be even slower. It is recommended that patients must make a clear diagnosis in time, cooperate with doctors for treatment and review regularly, and not to take it lightly because the tumor is not big. Keep a good state of mind, take physical exercise appropriately, pay attention to nutritional supplement and eat more fresh vegetables and fruits.