Randomized Controlled Trail of Polyethylene Glycol vs Sodium Phosphate for Colonic Cleansing of Colonoscopy

Randomized Controlled Trail of Polyethylene Glycol vs Sodium Phosphate for Colonic Cleansing of Colonoscopy

This study is to compare polyethylene glycol and sodium phosphate for colonic cleansing of colonoscopy.

Inclusion Criteria:

• Outpatients meet the following criteria: 1) age 18-60 years; 2) BMI 18.9-28; 3) Heart, lung, liver, and kidney function can tolerate colonoscopy; 4) Patients and their families are able to understand and be willing to participate in this clinical study and to sign informed consent

Exclusion Criteria:

• 1) colorectal surgery history (except appendectomy); 2) patients with intestinal obstruction, incomplete obstruction, intestinal hemorrhage; 3) patients with renal insufficiency; 4) patients with hirschsprung disease; 5) patients with inflammatory bowel disease during active period, which affects intestinal observation; 6) patients who are bedridden and lose the moving ability ; 7) have a history of severe mental illness; 8) pregnant or lactating women; 9) patients with other clinical conditions considered by some researchers should not participate in the trial.