Which is a risk factor for endometritis after delivery?

• A. Prolonged labor
• B. Breastfeeding
• C. Normal vaginal delivery
• D. Short labor

Answer: (A)

Postpartum endometritis is usually due to ascending infection of the endometrium from vaginal bacteria. The longer labor lasts, the more time bacteria have to ascend into the uterus, especially if membranes have ruptured and there are many vaginal examinations or other procedures. This prolonged exposure to potential pathogens increases the likelihood of infection after delivery. Breastfeeding and a normal, uncomplicated vaginal delivery don’t add this infection risk, and a shorter labor reduces exposure. (Note: cesarean delivery is another known risk factor, though not part of these choices.)