Most common cause of cervical insufficiency is: (A) Idiopathic, (B) Previous dilatation, (C) Exposure to DES, (D) Conization
Answer is A. The most common cause of cervical insufficiency is idiopathicCervical incompetence may be congenital due to the following:Mullerian anomaliesCollagen disordersExposure to DES or the causes may be acquiredObstetric trauma like cervical laceration during deliveryMechanical dilatationCervical Conization