Bladder nodules generally refer to bladder tumors, which can be initially judged as benign or malignant by imaging, and for a definitive diagnosis, pathology is required. Bladder tumor is a kind of tumor disease that occurs in the bladder, and the cause of the disease is related to factors such as smoking, long-term exposure to industrialized chemical products and chemical drugs. To determine whether a tumor is benign or malignant, a preliminary diagnosis can be made through imaging tests, such as MRI (Magnetic Resonance Imaging) and CT, both of which can reveal tumor characteristics and allow for diagnostic staging of the tumor. If you want to clarify the nature of bladder tumors, you can only take pathological examination, which is a cystoscopic biopsy to identify the nature of the tumor based on the results of the examination, and belongs to the gold standard of tumor diagnosis and identification. To summarize, if you find the existence of bladder nodules, you should seek medical treatment in time.