Common symptoms of urinary system tumors are hematuria, lumbago and abdominal swelling, etc. Meanwhile, because tumors invade kidneys and affect the normal function of kidneys, there are more urinary system tumors, which do not have the same performance. 1. Bladder cancer: hematuria with naked eye, bladder irritation symptoms, urinary difficulty and urinary retention. (1) Bulbous hematuria: it is the most common symptom of bladder cancer, usually intermittent painless bulbous hematuria. (2) Bladder irritation symptoms: because the tumor invades the bladder, there will be irritation symptoms such as frequent urination, urgent urination and painful urination. (3) Difficulty in urination and urinary retention: the increased size of bladder tumor will lead to obstruction of bladder outlet, resulting in difficulty in urination or urinary retention. 2. Ureteral cancer: hematuria, difficulty in urination and urinary retention. (1) Macroscopic hematuria: often intermittent painless macroscopic hematuria. (2) Difficulty in urination and urinary retention: obstruction of ureter by blood clots may cause urinary tract obstruction and symptoms of colic. When the urethra is obstructed, it will cause difficulty in urination and urinary retention. 3. Renal cell carcinoma: hematuria, low back pain, abdominal swelling, paraneoplastic symptoms. (1) Hematuria, low back pain, abdominal swelling: these are the triad symptoms of renal cancer, and if they appear at the same time, it usually indicates that the disease has entered the advanced stage. (2) Paraneoplastic symptoms: a series of paraneoplastic symptoms appear when the tumor invades the kidney, such as fever, anemia, high blood pressure and other symptoms. Urological system tumors also include prostate cancer, penile cancer and so on, and the performance of different tumors is different. If the above symptoms occur, it is recommended to consult doctor for treatment in time in order to reduce the adverse effects brought by the disease.