Tension in the Pelvic Floor During Pregnancy
Pregnancy brings incredible changes to the body physically, hormonally, and emotionally. One area that often doesn’t get enough attention is the pelvic floor. While most people think of pelvic floor strength as the goal, in pregnancy, the ability to relax is just as important especially in preparation for birth.
Understanding Pelvic Floor Tension
The pelvic floor is a group of muscles that supports the bladder, bowel, and uterus. During pregnancy, these muscles work overtime to support the growing baby. But for many women, this can lead to tension, pain, or difficulty relaxing the muscles an issue that can impact comfort during pregnancy and labour outcomes.
In one study of women with lower back pain, an incredible 95% showed signs of pelvic floor dysfunction, with:
71% experiencing tenderness
66% showing weakness
41% showing pelvic organ prolapse (POP)
This highlights just how closely back pain, pelvic tension, and pelvic floor health are linked.
The Pelvic Floor’s Role in Birth
One of the most important functions of the pelvic floor during childbirth is its ability to relax and lengthen. For the baby to descend smoothly into the birth canal, these muscles need to “get out of the way” something that can be more difficult if the pelvic floor is tight or overactive.
Research has shown that some women involuntarily contract their pelvic floor muscles instead of relaxing during pushing. This is called levator ani muscle (LAM) coactivation, and it can make labour longer or more difficult.
In fact:
About 18–22% of pregnant women coactivate their pelvic floor during pushing.
Women who learned relaxation and breathing strategies were often able to correct this pattern.
The more distensible (stretchy) the pelvic floor, the shorter and smoother the second stage of labour.
Pelvic Floor Distensibility and Birth Outcomes
Ultrasound studies in late pregnancy have shown that women who went on to have vaginal births tended to have more distensible pelvic floors, especially in the puborectalis muscle. Those with less elasticity were more likely to have unplanned caesarean births.
This means that pelvic floor mobility not just strength plays a big role in the mode of delivery.
Conditions Linked to Pelvic Floor Tension
Some women enter pregnancy with pre-existing pelvic pain conditions such as:
Vaginismus – involuntary tightening of the vaginal muscles
Vestibulodynia – pain in the vestibule region of the vulva
Vulvodynia – persistent vulvar pain without a clear cause
These conditions can make vaginal exams, intercourse, or birth itself extremely uncomfortable. Studies have found that women with these conditions are more likely to:
Have planned or unplanned caesarean births
Experience perineal tears or trauma if giving birth vaginally
For these women, compassionate care, gentle examination techniques, and tailored birthing preparation are essential.
The Role of Anxiety
Emotional factors play a big role too. Anxiety is significantly more common in those with vaginismus and vulvodynia and may even contribute to the development or persistence of pelvic pain.
During pregnancy and birth, anxiety can make it harder to relax both mentally and physically. Pelvic exams, though sometimes necessary, can increase distress if not handled with sensitivity. Studies show that trust, communication, and empathy from the practitioner can greatly reduce anxiety during examination or labour.
Supporting Relaxation and Birth Preparation
For many pregnant women, especially those experiencing pelvic floor tension, gentle osteopathic care can help. Osteopathy can support:
Pelvic mobility and balance
Circulation and tissue elasticity
Nervous system regulation, promoting calm and relaxation
In addition, birth preparation strategies such as:
Perineal massage and stretching
Mindful breathing
Positioning techniques
Avoiding prolonged or forced pushing (Valsalva manoeuvre)
Can all help reduce pelvic floor strain and support a more comfortable birth.
The Takeaway
Pregnancy isn’t just about strengthening the body, it’s also about learning to let go.
Supporting pelvic floor relaxation and mobility can improve comfort, reduce labour difficulties, and support recovery after birth.
If you’re experiencing pelvic pain, tension, or discomfort during pregnancy, osteopathic treatment can help you understand your body, release tension, and prepare both mind and body for birth. We are here to help you get the birth you deserve, if you have any questions or would like to know more, reach out to us today on 0405 640 786.