How dangerous can an emergency c-section be?

Fairly safe: The risk of injury during a csection is very low (less than 1%), but it is still surgery. There is risk of bleeding, infection, and injury to surrounding organs. The risk is higher if you have had previous pelvic or abdominal surgery.

Depends.: Depending on the emergency (maternal vs. Fetal) stat cesareans can even be lethal. Despite increased risk for infection, fetal injury, hysterectomy and bleeding, stats are generally safe and have great outcomes. Cesarean section is the most commonly performed life-saving surgery in the us nowadays. So, if you or yours need one, rest assured that it is done for good reason and expect great outcome.