Postpartum dew lasting more than 20 days is called incomplete dew, and the condition is more serious and even has a greater impact on maternal recovery and breastfeeding. The theory of Chinese medicine believes that its causes are related to Qi deficiency and internal obstruction of blood stasis, and is affected by factors such as the mode of delivery, maternal physical strength and postpartum conditioning. The main types include: 1) Qi deficiency type: the manifestation is a large amount of malodorous dew, the blood color is light, the patient appears dizzy and white, shortness of breath and other symptoms. The specific medication should be combined with the clinical situation and guided by the doctor’s interview.