green discharge is usually associated with an infection, generally thrush which can be treated and does not harm the baby. It is usually like a thick mucous green in colour. you still need to advise your ob or doctor as soon as you become aware of it so they can test what it is. When your waters break, if you notice that is is coloured green then you need to inform your midwife straight away!! This could mean that the baby has had bowel movements inside your tummy and may of swallowed it.