Based on the available research, several benefits are associated with giving birth in water.
A better birth experience
On average, women who give birth in water report a better experience than those who give birth on land: 72% say they would choose this method again, compared to 8% in the second group [3]. Another study found that the majority of women described their waterbirth experience as positive and very enjoyable [4], in contrast to their previous births if it was not their first child.
Less pain experienced
Studies suggest that women who give birth in water experience less pain [5][6]. As a result, there is less need for analgesic medication [7], and almost no use of epidurals (0% in some studies) [8].
Less pain medication needed
An American study found that women who use a birthing pool rate water as effective for pain relief in 84% of cases (compared to 24% effectiveness for medication among those who received analgesics) [9].
Another benefit of labouring in water: it may help avoid the potential side effects of morphine-based medications (reduced maternal awareness, slowed breathing in the baby) [10].
Another interesting finding: women who give birth out of water report feeling less pain during pushing. However, those who give birth in water do not recall the pain afterwards, contributing to a very positive memory of the experience [11].
Possibly a shorter labour
A 2005 randomised study of 160 mothers found a reduction in total labour duration (50 minutes less!) for those who gave birth in water [12].
It is also possible to take a pregnancy supplement or a raspberry leaf infusion to support the body in the lead-up.
Greater likelihood of a vaginal birth
In studies where women were randomly assigned to a waterbirth or a land birth, those in the water group had a higher likelihood of a vaginal delivery. In one study, for example, the vaginal birth rate was 94% in the waterbirth group versus 84% in the landbirth group [13].
Lower risk of episiotomy
Episiotomies cause more damage to mothers than a spontaneous tear, increasing the risk of long-term perineal injury [14]. In studies on the impact of episiotomies, researchers observed a significant reduction in episiotomy rates among women who had waterbirths (2 to 33 times lower risk!). Of course, it is more difficult for a healthcare professional to perform an episiotomy in water, which partly explains these figures.
Potentially lower risk of third- or fourth-degree perineal tearing
These tears are associated with issues such as faecal incontinence, long-term perineal pain, and pain during intercourse. Six observational studies found that these severe tears occur less frequently in waterbirths [15], while 3 found no significant difference. This reduction in risk is likely due to the fact that giving birth in water lowers episiotomy rates, and episiotomies can increase the risk of third- and fourth-degree tears [16].
Less blood loss
One review concluded that women who give birth in water lose less blood, or a similar amount, compared to those who give birth on land [17]. Another study found that women who gave birth on a birthing stool had twice the risk of postpartum haemorrhage than women who gave birth in water [18].