Risk factors

Number

Percentage

Abdominal constipation

3

6.52

Pressure chronic cough

1

2.17

Persistence of the peritoneo-vaginal canal

24

52.17

Persistence of the umbilical ring

19

41.30

Persistence of the Nuck canal

2

4.35

Prematurity

1

2.17

Profession of strength

1

2.17

No risk factors

1

2.17