Abstract:Abstract: Objective?To explore the clinical efficacy and safety of ultrasonic Doppler guided hemorrhoid artery ligation combined with minimally invasive operation (PPH) in treatment of severe hemorrhoids.?Methods?72 patients with severe hemorrhoids from January 2016 to January 2017 were randomly divided into control group (n = 35) and observation group (n = 37), the control group received PPH treatment, the observation group received ultrasound Doppler hemorrhoidal artery ligation combined with PPH therapy. The surgical indexes, therapeutic effects and incidence of complications of the two groups were observed.?Results?There was no significant difference in the time of operation and the amount of bleeding in the two groups (P > 0.05). The time of wound healing and the time of hospitalization in the observation group were significantly shorter than those in the control group, and the difference was statistically significant (P < 0.05). The effective rate of the observation group at 1 months after operation was 94.6%, obviously higher than 77.1% of the control group, the difference was statistically significant (P < 0.05). There was no significant difference in VAS score between the two groups before and at 7 days after operation (P > 0.05). The score of VAS in the observation group was significantly lower than that of the control group at 14 days after the operation (P > 0.05). The score of Wexner in the observation group was significantly lower than that of the control group at 3 months after operation, and the difference was statistically significant (P < 0.05). The incidence of complications in the observation group was 2.7%, which was significantly lower than that of the control group (P < 0.05).?Conclusion?Doppler ultrasound guided hemorrhoidal artery ligation combined with PPH has a good clinical effect in treatment of severe hemorrhoids. The operation is simple and safe, and the incidence of postoperative complications is low, so it is worthy of clinical application.