The reasons for not getting clean after 60 days after delivery are incomplete uterine regeneration, uterine cavity residue, infection, and poor healing of uterine incision. 1. Incomplete uterine regeneration: when the uterine regeneration is incomplete, the blood sinus of the placenta attachment surface is incomplete, which can cause long duration of bad dew, combined with gynecological examination and ultrasonography can assist in the diagnosis, and can be given by the doctor’s instructions to promote uterine contraction therapy, such as hysteronin and other medications. 2. Uterine cavity residue: when combined with the placenta, meconium and other tissue residue, can affect the uterine regeneration, which will cause long-lasting discharge, combined with the history, clinical manifestations and ultrasound examination can assist in the diagnosis. 3. Infection: Inflammatory stimulation can affect the uterine contraction, and there is a long duration of discharge, accompanied by odor, fever, uterine pain and other symptoms, can be combined with the medical history and blood routine to assist in the diagnosis. 4. Poor healing of uterine incision: when the uterine incision is not well aligned, improper suture, etc., it can cause poor healing of the incision and long duration of discharge, which can be diagnosed by ultrasonography. If the discharge is still not clean 60 days after delivery, you need to go to the hospital in time to find out the cause and actively treat it.