Recurrence Rate of Minimally Invasive Endoscopic Treatment of Internal Hemorrhoids

Inclusion Criteria: * 1\. Age ≥18 years old, both sexes 2, grade I-III internal hemorrhoids with symptoms related to internal hemorrhoids 3\. The purpose and adverse consequences of endoscopic minimally invasive treatment of internal hemorrhoids have been fully understood before surgery, and the informed consent for endoscopic minimally invasive treatment of internal hemorrhoids has been signed Exclusion Criteria: * 1\. Patients with contraindications to endoscopic minimally invasive treatment (1) grade IV internal hemorrhoids, mixed hemorrhoids and external hemorrhoids; (2) I-III Degree of internal hemorrhoids with incarceration, thrombosis, erosion, infection, etc. (3) patients with severe systemic diseases could not tolerate endoscopic treatment; (4) accompanied by crissum infectious disease, anal fistula, and inflammatory bowel disease activity, etc.; (5) in menstrual period, pregnancy and puerperium, (6) patients with sclerotherapy allergy; (7) function of blood coagulation disorder or are using anticoagulant drugs. 2\. Patients with a history of allergy to narcotic drugs 3\. Patients who were deemed by the investigator to be ineligible for participation in the trial