A 25-year-old primigravida at 38 weeks undergoes a cesarean section for failure to progress. Postoperatively on day 3, she develops fever, lower abdominal pain, and foul-smelling lochia. Pelvic examination reveals uterine tenderness. What is the most common causative organism of postpartum endometritis?
- A Mixed aerobic and anaerobic vaginal flora ✓
- B Group B Streptococcus
- C Escherichia coli
- D Staphylococcus aureus
Correct answer: A. Mixed aerobic and anaerobic vaginal flora
Explanation
Postpartum endometritis is typically a polymicrobial infection involving mixed aerobic and anaerobic vaginal flora, including gram-positive cocci, gram-negative rods, and anaerobes such as Bacteroides species. The infection ascends from the lower genital tract, especially after prolonged labour and cesarean section.
Reference: Williams Obstetrics, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.