The method of pumping ascites: 1, generally under the guidance of ultrasound to pump ascites, or in the umbilicus and the umbilicus and the upper border of the pubic symphysis line 1cm above the midpoint, or with the left anterior superior iliac spine line of the outer and outer 1/3 of the puncture. 2, choose sitting or semi-recumbent position for puncture. 3, the puncture first disinfection, laying towel anesthesia, puncture to choose a good site directly after the anesthesia, first into the puncture abdominal wall for anesthesia. After anesthesia, start using the needle to pump ascites, pumping ascites generally can not be too much, a pumping ascites can not exceed 3000ml, after pumping ascites to retain samples for testing.