Which adolescent age group has the highest risk of prolonged labor?

Which adolescent age group has the highest risk of prolonged labor?

• A. 12 to 13 years
• B. 14 to 15 years
• C. 16 to 18 years
• D. 19 to 21 years

Answer: (A)

The idea is that pelvic maturity matters for how smoothly labor progresses. In early adolescence, the pelvis is not fully grown, so the birth canal can be relatively small for the fetal head. This mismatch, known as cephalopelvic disproportion, makes labor more likely to be prolonged because the uterus may contract normally but the fetus cannot progress through the birth canal quickly. As age increases into mid-to-late adolescence, the pelvis becomes more mature and better able to accommodate vaginal birth, reducing the risk of prolonged labor. Therefore, the youngest group (early teens) carries the highest risk for prolonged labor.

The idea is that pelvic maturity matters for how smoothly labor progresses. In early adolescence, the pelvis is not fully grown, so the birth canal can be relatively small for the fetal head. This mismatch, known as cephalopelvic disproportion, makes labor more likely to be prolonged because the uterus may contract normally but the fetus cannot progress through the birth canal quickly. As age increases into mid-to-late adolescence, the pelvis becomes more mature and better able to accommodate vaginal birth, reducing the risk of prolonged labor. Therefore, the youngest group (early teens) carries the highest risk for prolonged labor.