Patients with incomplete postpartum dew will generally take motherwort for about 2 weeks to get results, but it should still depend on individual constitution and the severity of the condition. The phenomenon of incomplete postpartum dew is the phenomenon that the dew is not drained after 42 days of delivery. There are many reasons for incomplete postpartum dew, such as embryonic tissue left behind, uterine cavity infection, endometritis, etc. Motherwort has the effect of activating blood circulation and removing blood stasis, and can promote uterine contraction to speed up the discharge of the dew. However, how long it takes to produce results after taking motherwort varies from person to person and from disease to disease. In general, the effect can be seen in about 2 weeks after taking motherwort. It is recommended that before taking motherwort, patients should clarify the cause of incomplete dew, and then take the medicine according to medical advice. Patients are advised to take the medication under the guidance of an obstetrician and, if necessary, undergo an ultrasound examination of the uterus to help with the diagnosis.