good website here
the major risk time is during labour, but a uterus can rupture , before or after , it is rare......
it can depend on the incision site of the c.s and whether labour is augmented with synto ..these things can increase the risk of rupture...
sometimes, a scar can start to come apart, dehisence, which is different to rutpure..where the uterus opens at the incision site,
although rupture is an obstetric emergency,m and a catastrophic event, it is rare, and often the baby and mum are ok
there are times when rupture does not end well, and it is a small risk ,but one that needs to be weighed up in relation to all other factors
NICE guidelines to say VBAC should be offered where it is appropriate, and the adage of once a c.s always a c.s does not always hold true now....