Before revision: Antenatal perineal massage (APM) or Birth Canal Widening (BCW) is the massage of a pregnant woman's perineum – the skin and deep tissues around the opening to the vagina or ( 'birth canal' – when a baby is in this passage), performed in the 4 to 6 weeks before childbirth, i.e., 34 weeks or sooner (Reference 7, as more births are occurring at around 28 weeks) and continued weekly until birth.
After revision: Antenatal perineal massage (APM) or Birth Canal Widening (BCW) is the massage of a pregnant woman's perineum – the skin and deep tissues around the opening to the vagina (or 'birth canal' – when a baby is in this passage), performed in the 4 to 6 weeks before childbirth, i.e., 34 weeks or sooner (Reference 7, as more births are occurring at around 28 weeks) and continued weekly until birth.