Trial of labor after caesarean<unk>  is the term for an attempted birth in a patient who has had a previous caesarean section. It may result in a successful VBAC (vaginal birth after caesarean) or a repeat caesarean section. In approximately 20-40% of<unk> s, a caesarean is performed.<unk>  is recommended when a patient has had one previous caesarean section using a low transverse uterine incision. The main risks of<unk>  are emergency caesarean section and uterine rupture.
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