Globally, the rate of instrumental vaginal delivery is declining in all developed countries at the expense of a general increase in the rate of cesarean sections. Failed operative vaginal delivery is an undesirable situation for all obstetricians and can sometimes lead to increased maternal and fetal morbidity and, in extreme cases, to fetal mortality. These risks can be minimized or avoided through individualized assessment of each patient, fetus, and clinical situation by using the protocols recommended by scientific societies to perform instrumental delivery and abandoning the vaginal route at the appropriate moment without extending the number of attempts or increasing the intensity of the traction performed. Experience of vaginal surgery is essential, and the procedure should be abandoned whenever the obstetrician feels uncertain.