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under the action of ultrasonic scalpel, a largenumber of fiber cells are synthesized and secretedinto collagen fibers, elastic fibers, reticular fibersand organic substrates. make the vaginal contractionand achieve a firming effect. under the action ofthe ultrasonic scalpel on themicrovascular vasculature, the vaginal wallvasodilatation,increased blood flow, active cellularoxidation and increased nutrients make the vaginamore sensitive and lubricated. ultrasonic scalpel can change the tissue characteristics in essence, make the mucosal tissuenew, normalize the ph value and the flora,increasethe vaginal immunity, and reduce the infection ratein the private area..syi