| Indication | Incidence |
| Appendicitis | 1:1500 pregnancies |
| Cholecystitis | 1:1500 to 1:10,000 pregnancies |
| Bowel obstruction | 1:1500 to 1:3500 pregnancies |
| Adnexal torsion | 1:3000 to 1:4000 pregnancies |
| Breast or cervical disease | 1:3000 to 1:5000 pregnancies |
| Trauma | Variable (trauma complicates 4 to 8% of all pregnancies, but the incidence of severe life-threatening trauma possibly requiring surgery is 0.3 to 0.4%) |
