Extracorporeal Shock Wave Lithotripsy (ESWL) is a revolution in the history of stone treatment and is considered one of the three new medical technologies of the 20th century. Many people refer to it as “laser lithotripsy”, but in fact it is a type of shock wave. Extracorporeal shock wave lithotripsy is a new technology that emerged in the 1980s. Special equipment is used to generate shock waves to break up the stone from outside the body and then expel it from the urinary system through the lumen of the urinary tract. The introduction of this treatment has saved most stone patients from the pain of open surgery and has brought about a whole new change in the treatment of urinary stones. Extracorporeal shock wave lithotripsy has the advantages of being safe, effective, less damage, fewer complications, and faster recovery, etc. The treatment process is basically painless for the patient and can be completed without anesthesia or with a small amount of analgesic drugs. Patients with small stones and no other serious systemic diseases do not need to be hospitalized and can be treated on an outpatient basis. Extracorporeal shock wave lithotripsy has a wide range of indications, and it is suitable for both kidney and ureteral stones. Our hospital was the first to perform ESWL in Qiqihar Mountain in 2003 and has accumulated rich clinical experience. Now, we have introduced the most advanced liquid-electric extracorporeal shock wave lithotripter in China, which is positioned by Shantou ALOKa-B ultrasound probe, and uses high-energy shock waves to focus on the stones, so that the stones are crushed and discharged through urine. After clinical practice, ESWL is proved to be a safe, efficient, comfortable, convenient and inexpensive non-invasive treatment, which is currently preferred by more than 90% of upper urinary tract stones. In order to improve the effect of lithotripsy and stone removal, reduce recurrence and shorten the patient consultation process. The Lithotripsy Center provides innovative services to the public, from diagnosis, lithotripsy treatment, lithotripsy physiotherapy, stone composition analysis, ultrasound review, follow-up and other integrated services. Principle: The external shock wave will focus on the stone and break it into mud and sand, which will be discharged out of the body with urine through the urethra to achieve the treatment purpose. Indications: 1. Kidney stones: single stones in the renal pelvis or calyces with a diameter greater than 0.5cm or less than or equal to 2cm, or multiple stones with the same total volume are the best indications for ESWL. 2. Ureteral stones: middle and upper ureteral and end ureteral stones with a length diameter greater than 0.5 cm and less than or equal to 1.5 cm are the best indications for in situ ESWL. Stones with large volume, long residence time or dense structure require multiple lithotripsy or combined ureteroscopy (URS) treatment. III. Absolute contraindications: pregnancy, organic obstruction of the urinary tract distal to the stone, non-obstructive renal insufficiency, acute urinary tract infection, severe cardiovascular disease. Relative contraindications: abnormal coagulation mechanism, cardiovascular disorders, obesity, renal insufficiency, urinary tract infection, complicated stones. I. First register for urology, then go to the lithotripsy room or urology specialist office. Please bring all medical records, previous ultrasound, X-ray and urine test reports. Do not eat milk, desserts and other gas-producing foods to avoid gas accumulation in the intestine, which may affect the positioning. Empty the second stool. If you are having a urinary ultrasound examination, please drink water to distend the urine (fill the bladder) first. Routine tests before lithotripsy are: abdominal ultrasound, abdominal plain film (X-ray), urine routine, blood routine and blood biochemistry. If necessary, intravenous pyelogram and other tests should be done. The fee for extracorporeal lithotripsy is 600 RMB. Precautions after shock wave lithotripsy I. Drink more than 2500ml/day of water to ensure that the color of urine is clear each time. II. Most of the patients can have 1 to 3 times of hematuria after the operation, and the bleeding time is longer for those who have kidney stone lithotripsy or have disorders of blood clotting mechanism, if the hematuria persists, please follow up in the hospital. Third, about 5% of patients may have renal colic during stone removal after surgery, especially when the stone passes through the ureteral stenosis. In severe cases, it is necessary to receive treatment in hospital. Please filter the urine after surgery to collect the stone and bring it back to the hospital for stone composition analysis during the follow-up. 5. Pay attention to rest and do not perform vigorous exercise for one week after the operation for kidney stone patients. Ureteral stone patients can increase their activities to promote stone discharge. VII. The lower renal calyx is located at the lowest point of the kidney, and the kidney outlet is above it; therefore, the rate of stone discharge after surgery for lower renal calyx is low. Do more inversion exercises to help stone discharge. The method is: drink more than 200ml of water and stand upside down after about 20 minutes, several times a day. You can lie on the edge of a higher bed with your hands on the ground, keeping your upper body vertical to your lower body; or lie on a sofa with your feet upside down on the wall; or, hang your feet upside down on a bar. Older or have high blood pressure, heart disease and other patients to do inversion should be measured. In addition, the right kidney stone should be placed on the left side after surgery, and the left kidney stone should be placed on the right side after surgery, which also helps to remove stones. Eight, postoperative follow-up is necessary. Generally, a follow-up examination is required 2 to 3 weeks after surgery, and ultrasound examination is preferred. Please drink water first, and do ultrasound examination after distending urine, and take X-ray film if needed. Nine, extracorporeal shock wave lithotripsy is a treatment method, it does not prevent stones. Statistics show that the recurrence rate is about 50% 5 years after the stone is cured. Therefore, even if the stone disease has been cured, it is very necessary to follow up every 1 to 2 years.