It’s normal to have malodour one month after cesarean section. Normally, bloody malodour lasts about 20 days and plasma malodour lasts about one month. If there is still nightmare after one month of cesarean section, there is no need to be too nervous as long as the nightmare does not smell bad and the color is normal. If the amount of nightmare is particularly high, accompanied by abdominal pain or other discomfort, it is recommended to go to the obstetrics and gynecology clinic in a timely manner to perform ultrasound examinations to exclude placental residue in the uterine cavity or poor uterine regeneration, and to provide timely symptomatic treatment. In addition, poor rest during the menstruation period can also lead to prolonged bleeding. It is recommended to pay attention to rest during the menstruation period and keep the perineum clean and hygienic to avoid infection. If the amount of malignant dew is small and there is no obvious odor or discomfort, you can continue to observe, rest more, keep your mood happy and wait until 42 days after delivery to take your baby to the hospital for the 42-day postpartum examination of the mother and baby together. In the case of malignant dew, especially bloody malignant dew, you should not take blood-boosting drugs or food. It is important to strengthen nutrition after the operation to facilitate the recovery of the body. Keep the vulva clean and change the pads regularly to avoid infection. Vaginal douching is not allowed. No intercourse is allowed. In addition, you should also strengthen nutrition after caesarean section, so that your body can recover as soon as possible. Therefore, the duration of postpartum dew varies from person to person and lasts for about 6 weeks at most. If abnormalities occur, it is recommended to go to the hospital in time for a clear diagnosis and timely symptomatic treatment.