After the Lipo knife is done cervical polyps usually bleed for 5 to 7 days, but due to individual differences, the exact time varies from person to person. Lipo knife is ultra-high-frequency electric wave knife, through the heat it produces the intracellular moisture to form steam waves to complete a variety of cutting surgical methods, due to the cutting of local fresh trauma, so there will be a small amount of vaginal bleeding, generally lasts about 5 to 7 days, to be localized scabs fall off, skin lesions recovered after the vaginal bleeding will stop. At the same time, patients should also pay attention to keep the vulva dry and clean, if you do not pay attention to personal hygiene combined with bacterial infection is not conducive to the repair of the wound, pay attention to rest, do not exercise strenuously, prohibit sexual intercourse within 2 months after the operation. If the patient’s postoperative vaginal bleeding gradually increased, it is recommended that the patient go to the gynecology department of a regular hospital, complete the relevant examinations, and after clarifying the cause of the disease, under the guidance of the doctor to actively treat the disease.