A Multicenter Prospective Clinical Study of Endoscopic Foam Sclerotherapy for Internal Hemorrhoids

Inclusion Criteria

• •People are willing to sign the informed consent form of this trial.
• •People(aged 18 to 70 years) with clinical symptoms such as bleedingprolapse and so on have been diagnosed with grade I, grade II and grade III internal hemorrhoids by colonic epdoscopy;
• •People can follow short-term (3 month) and long-term (12 month) visit plans;
• •Describe symptoms objectively and actively complete the evaluation scale;
• •No allergic diseases and allergy to sclerosing drugs;
• •Non-lactating and pregnant women: patients without pregnancy plan (including the men) in 1 month after the test;
• •Did not participate in any drug trials (including this trial drug) within 3 months before the trial;
• •People with long-term use of anticoagulant drugs (such as aspirin, clopidogrel, etc.) need to be stopped for 5-7 day