Postpartum intrauterine inhomogeneous CDFI blood flow signal suggests adhesions or implanted residual placental tissue and requires further treatment as prescribed. CDFI refers to color Doppler ultrasound, which should be performed to understand the recovery of the uterus when post-partum hemorrhagic bloody discharge persists for a long period of time or increases in volume. When the ultrasound suggests uneven CDFI blood flow signal in the uterus, it suggests the presence of adhesion or implantation of residual placental tissue, and further treatment is required as prescribed by the doctor. When the ultrasound suggests that there is residual tissue in the uterine cavity with blood flow signals, medication such as mifepristone should be given under the supervision of the doctor to promote the expulsion of the residual tissue, and the treatment should be evaluated by monitoring the level of HCG (human chorionic gonadotropin), and the uterine recovery should be assessed by follow-up ultrasound as prescribed by the doctor. Postpartum intrauterine heterogeneous CDFI blood flow signal requires active treatment under medical supervision.