Giving birth with no medical intervention (natural childbirth) is the ideal of many mothers, and is considered the best way in which to give birth. Provided medical care is readily available, it is probably the perfect solution to childbirth for both mother and child, but because critical problems can arise very rapidly during childbirth (eg. massive haemorrhage, obstructed labour, foetal distress, retained placenta etc.) it is essential that medical assistance is immediately available. The mother may also require pain relief, particularly in a first birth, and the baby may require resuscitation. Birthing rooms, which have a homely ambience, but are attached to a maternity hospital, are ideal. Home births can be very risky, as even with a woman who has had no problems in previous births, unexpected problems may occur.