Strong Through Pregnancy: Understanding and Managing Back Pain

As pregnancy progresses into the third trimester, many women experience new physical challenges as their bodies prepare for childbirth. One of the most common complaints during this stage is back pain. While often considered a normal part of pregnancy, persistent discomfort can affect daily activities, sleep quality, and overall well-being.

Understanding why back pain occurs during the third trimester and learning ways to manage it can help expectant mothers stay comfortable during the final weeks before meeting their baby.

Why Does Back Pain Increase in the Third Trimester?

Several physical and hormonal changes contribute to back pain during late pregnancy.

1. Increased Weight and Pressure

By the third trimester, the baby has grown significantly, adding extra weight to the mother's body. This additional weight places increased stress on the spine, lower back, and pelvic joints. The growing uterus also shifts the body's center of gravity forward, causing many women to unconsciously adjust their posture, which can strain back muscles.

2. Hormonal Changes

Pregnancy hormones, particularly relaxin, help prepare the body for labor by loosening ligaments and joints in the pelvis. While this flexibility is necessary for childbirth, it can also reduce stability in the lower back and pelvic region, leading to discomfort and pain.

3. Muscle Separation

As the abdomen expands, the abdominal muscles stretch and may separate, a condition known as diastasis recti. Because the core muscles provide support for the spine, this separation can place additional pressure on the lower back.

4. Stress and Fatigue

Emotional stress and physical fatigue can contribute to muscle tension, particularly in the neck, shoulders, and back. Poor sleep, which is common in late pregnancy, may further worsen discomfort.

Common Types of Pregnancy-Related Back Pain

Back pain during the third trimester may present in different ways:

• Lower back pain, often felt around the lumbar spine.

• Pelvic girdle pain, affecting the hips, buttocks, and pelvic joints.

• Sciatic pain, characterized by sharp or shooting pain that travels down one leg.

• Upper back pain, usually caused by posture changes and breast enlargement.

Understanding the location and type of pain can help healthcare providers recommend appropriate management strategies.

Questions about how Pelvic Floor PT can help you feel strong and confident throughout your pregnancy and postpartum journey? Email kristina@fixxedstudios.com or click the button below to book a free 20 minute phone consult to learn more about our Pelvic Floor PT program!