What causes Bandl ring?
Similarly one may ask, is Bandl's Ring dangerous?
It is unclear what causes Bandl's ring. It is believed that prolonged labor may play a role in the development of a constriction ring [4]. Dystocia has also been implicated as both a cause and an effect [1]. The incidence of Bandl's ring is suggested to be 0.02% or one in every 5000 live births [5].
Just so, what is a contraction ring?
A contraction ring is a spasmodic contraction of the lower portion of the uterus which usually occurs during the first phase of labour, but persists into the second stage. It is not the result of obstructed labour, but is itself the cause of obstructed labour.
SECONDARY UTERINE INERTIA <ul><li>A condition that develops during the second (expulsive) stage of labor or at the end of dilation stage following normal or satisfactory uterine contractions. </