Patient: hematuria for 1 week Labs, urinalysis: erythrocytes ++++, ultrasound: 2 cm diameter mass in the bladder triangle. Untreated How to diagnose and treat. Lin Zongqi, Department of Surgery, Overseas Chinese Hospital, Shishi, Fujian Province, China: Hello, the bladder triangle 2cm in diameter should be examined and treated as soon as possible. Firstly, cystoscopy should be performed to take a small portion of the mass for pathological examination. According to the pathological report, the nature of the tumor (benign or malignant, pathological grading), further treatment should be decided, and the further treatment is electrocoronoscopic resection of the mass (TURBt) or open surgery, and after surgery, cyst infusion chemotherapy or other treatments should be carried out. Welcome to our department for treatment.