If the vaginal discharge is still not clean half a month after hysteroscopy, it may be caused by tissue residue or infection, etc. It is necessary to clarify the specific cause and then deal with it according to the situation. 1. Tissue residue: usually 7 to 10 days after hysteroscopy vaginal discharge will be clean, if half a month is not clean, it may be an abnormal phenomenon, may be caused by tissue residue in the uterus, this situation generally need to be purged. 2. Infection: half a month after the hysteroscopic surgery, the discharge is not clean may also be caused by an infection, usually accompanied by abdominal pain, fever, fatigue and other symptoms, this situation requires anti-infection treatment, such as the use of levofloxacin and other drugs as prescribed by the doctor to treat. Therefore, women who have not been clean for half a month after hysteroscopic surgery are advised to go to a regular hospital in time to find out the specific reasons, and then targeted treatment, so as not to lead to adverse consequences.