Urinary tract blockage, medically called urinary tract obstruction, is divided into upper urinary tract obstruction and lower urinary tract obstruction. Upper urinary tract obstruction mainly causes hydronephrosis of the kidney and ureter, which manifests as back pain and lump in the lower back. If there is infection, fever and chills will occur. If the obstruction is prolonged, it will cause the kidney function to decrease, while causing the creatinine to increase, and the patient has the manifestation of uremia, such as nausea, vomiting, chest tightness, breath-holding, and edema. In the case of lower urinary tract obstruction, the main symptoms are difficulty in urination, lower abdominal distension and even urinary retention. If the same is combined with urinary tract infection, frequent urination, urgent urination, painful urination and burning sensation in the urethra will occur. For urinary tract obstruction, it is important to actively search for the cause of the obstruction, which is more commonly prostatic hyperplasia and urinary stones, and then give treatment according to the cause.