The intermittent postpartum dew is often caused by the following reasons: 1. residual conditions in the uterus, such as placenta or fetal membrane residue will lead to unclean bloody dew, it is recommended to do an ultrasound examination. 2. caused by poor uterine regeneration, due to postpartum fatigue or due to other reasons resulting in poor uterine regeneration, will also make the blood sinus open in the uterine cavity, bloody dew will also be intermittent unclean. 3. Because of postpartum infection, this condition often results in unclean bloody malodorous dew and odorous discharge, accompanied by pain in the lower abdomen.