Question
Definitive indication of LSCS ‑
| A. |
Mento ant |
| B. |
Contracted pelvis |
| C. |
Occipito posterior |
| D. |
Vertex |
|
Correct Answer » B Explanation |
 |
Contracted pelvis is a definitive indication for LSCS because:
– It causes cephalopelvic disproportion (CPD), a mismatch between fetal head & maternal pelvis.
– Vaginal delivery is mechanically impossible in CPD.
– Therefore, cesarean section is mandatory.
Other options:
A. Mento-anterior position
– Vaginal delivery is possible.
– Chin (mentum) is anterior, allowing flexion & descent.
C. Occipito-posterior position
– Usually a malposition, not absolute indication.
– Many cases deliver vaginally (spontaneously or assisted).
D. Vertex presentation
– Normal presentation for vaginal delivery.
LSCS
Absolute Indications:
– Contracted pelvis (CPD)
– Major degrees of placenta previa
– Previous classical cesarean section
– Persistent transverse lie
– Obstructed labor
Relative Indications:
– Fetal distress
– Failed induction
– Malpresentation (e.g., breech, some occipito-posterior cases)
– Multiple pregnancy (selected cases)