 Experimental evidence suggests that NPWT promotes wound healing by removing exudate, approximating the wound edges, and reducing bacterial contamination. Obesity body mass index BMI 30kgm2 increases the risk for both cesarean delivery and SSIs compared to non-obese women. The increased risk of SSIs is in part due to the increased thickness of the subcutaneous space, allowing collection of exudates and increasing tension on wound edges, promoting the growth of bacteria, and leading to wound infection and breakdown. Thus, prophylactic NPWT may be particularly effective in this patient population. 