Green fluid after cesarean section may be caused by vaginitis, cervicitis, endometritis and so on, which can be treated by taking antibiotic drugs. 1. Vaginitis: When women are in the puerperium, they will discharge bad dew, but when they are 3-4 days after delivery, the normal bad dew is usually bloody, and the appearance of green liquid may be due to the presence of vaginitis in the mother, who is mostly accompanied by vulvar itching and other symptoms. At this time should be clear pathogenic bacteria, if the bacterial infection, can use metronidazole and other drugs for treatment. 2. Cervicitis: When cervicitis occurs, vaginal secretion of abnormal green fluid will also occur, and if combined with urinary tract infection, frequent urination, urinary urgency and other uncomfortable symptoms will also occur. At this time, the pathogenic bacteria should be clarified, if it is Neisseria gonorrhea, antibiotics such as cefixime can be used for treatment. 3. Endometritis: Due to the invasion of pathogenic bacteria into the uterine lining, mothers may also experience green fluid after cesarean section, and often have lower abdominal pain and other symptoms. At this time, after clear pathogenic bacteria, can use ceftriaxone sodium, azithromycin and other drugs treatment. Note that the above drugs should be used under the guidance of the doctor, avoid unauthorized use of drugs, so as to avoid adverse effects. If a woman has green fluid after cesarean section, it is recommended to consult a doctor in time, under the guidance of the doctor, improve the relevant examination, clarify the cause of the disease, and symptomatic treatment.