Due to its unpredictability and progression, cancer directly affects the mental and physical condition of the patient. Based on the analysis and incidence in the world, bladder cancer is one of the most common malignancies in men. Ranking at a high fourth place and eighth in women, I should pay much more attention to this malignant disease. Due to its anatomical location in the pelvis, the urinary bladder as a muscular organ has a number of important functions. One of the most important tasks is the storage of urine. Together with other parts of the urinary system, they excrete unnecessary and harmful substances from the body. In order to maintain one's own health, prevention is necessary. When specific symptoms and signs of the disease appear, I should react adequately. A risk factor that increases the likelihood of bladder cancer is smoking. Diagnosing a bladder tumor involves a series of tests. Bleeding, the appearance of blood clots, dysuria are just some of the symptoms of the disease. The gold standard in diagnostics is ultrasound examination and cystoscopy. By taking a piece of tissue for pathohistological analysis, the final diagnosis of the disease is established. Depending on the stage of the disease, the doctor suggests and informs the patient about possible treatment methods. The most common bladder malignancy with a good treatment prognosis is muscle invasive cancer. The operation that is carried out in most cases is transurethral resection of the urinary bladder. In addition to TURM, one of the possible forms of treatment is radical cystectomy with the use of intravesical therapy. In addition to a physical examination by a doctor specializing in urology, performing diagnostic and therapeutic procedures, nurses/technicians play a key role in preparation for surgery and further recovery.