Backache during the antenatal period is rarely just about weight gain. Two main factors drive this common complaint: changing hormones and shifting physical alignment.
During pregnancy, the body produces high levels of relaxin and progesterone. Relaxin softens the ligaments throughout the pelvis, preparing the birth canal for delivery. Unfortunately, this softening also affects the ligaments supporting the lower back and sacroiliac joints, making them less stable.
As the uterus grows, the woman's center of gravity shifts forward. To keep from falling over, she naturally leans backward, increasing the curve in the lower spine. This postural change places continuous stress on the lumbar muscles and spinal joints.
Pregnancy backache often flares up due to specific daily activities that strain an already vulnerable musculoskeletal system. Midwives must help women pinpoint these triggers during antenatal visits.
Most backaches in pregnancy are benign musculoskeletal discomforts, but midwives must perform a careful assessment to rule out serious obstetric or medical conditions.
Always ask about the exact location, onset, and radiation of the pain. Check if the pain wraps around the abdomen or is accompanied by uterine tightening, which could indicate preterm labor. Assess for urinary symptoms like frequency, urgency, or fever, which point toward a urinary tract infection or pyelonephritis.
Be alert for red flags that require immediate medical referral:
Management of physiological backache focuses on comfort, self-care, and safe physical support. Drug therapy is rarely needed and should be used cautiously.
| Intervention Type | Practical Method | How It Helps |
|---|---|---|
| Heat and Cold | Warm compress or pack on the lower back | Relaxes tense muscles and eases localized ache |
| Support Garments | Maternity pelvic support belts | Takes the physical weight of the uterus off the spine |
| Rest and Positioning | Side-lying with a pillow between knees | Aligns the pelvis and relieves lumbar pressure |
| Gentle Exercise | Prenatal yoga or pelvic tilt exercises | Strengthens core and back muscles safely |
Analgesics like paracetamol can be used if approved by the physician, but non-drug measures remain the foundation of relief.
Prevention is always better than cure. Midwives have a great opportunity during routine antenatal education sessions to teach women how to protect their backs during daily tasks at home and work.
Advise women to avoid standing in one place for too long; if their work requires standing, they should rest one foot alternately on a small box or stool. When sitting, chairs should provide good lumbar support; placing a small rolled-up towel behind the lower back makes a big difference.
Teach women to avoid wearing high heels or completely flat shoes with no arch support. Supportive walking shoes with a low, wide heel provide the best stability for the changing body.