This study aims at evaluating the effect of short-aggressive fluid therapy with Ringer solution before ERCP (Endoscopic Retrograde cholangiopancreatography) on the prevention of pancreatitis related to ERCP. 240 samples were evaluates. An inclusion criterion of the study was the indication for endoscopy, etc. Exclusion criteria: Active cholangitis; Age over 70 years; Chronic pancreatitis, etc. A total of 240 samples were estimated that 120 people will be randomly assigned to two groups. For the intervention group, aggressive fluid therapy, a dose of 20 ml / kg of Ringer lactate within 90 minutes before endoscopy And 3 ml/ kg /h is given during ERCP with 3 to 8 mL / kg /h will continue. If there is no pain, it will become 1.5 ml / kg /h. For the control group, 1.5 mL / kg /h during ERCP are Ringer lactate which will continue up to 8 hours after ERCP. For Both groups who received intravenous fluid when they are able to eat a normal diet, it will be cut. Then all patients by way of ERCP (guide wire), will be treated. Upon completion of ERCP, all patients 2, 8 and 24 hours later will be visited by the digestive flow. Review of fluids through clinical examinations will be at or ankle edema, pulmonary crackles, or decreased O2 Saturation. In addition to pancreatitis, two criteria are forming pancreatitis (Hyperamylasemia and Pain) as studied variables.