What causes lower back pain during early pregnancy?

Many women experience tingling pain in the lower back after pregnancy. In fact, in the early stages of pregnancy, lower back pain is also a normal pregnancy reaction. It is caused by the stimulation of the uterus during pregnancy, and also by changes in the pregnant woman's body posture. In addition, the pregnant woman's physical constitution, or being tired during pregnancy, and standing or sitting for a long time can cause lower back pain.

1. Normal pregnancy reaction

If you only experience lower back pain in the early stages of pregnancy but no vaginal bleeding, this is caused by the fertilized egg implanting into the endometrium. As the fertilized egg gradually grows after implantation, the uterus is stimulated and sometimes uterine contractions occur. The hormone levels also change at this time, so this is lower back pain caused by the stimulation of the uterus during pregnancy. There may also be slight abdominal distension and pain, which is a normal reaction to pregnancy and there is no need to worry.

2. Changes in pregnant women’s body posture

In the early stages of pregnancy, due to the influence of hormones, the joint ligaments relax, the uterus enlarges, and compresses the pelvic tissues and nerves. As the abdomen enlarges, the body's center of gravity gradually moves forward, forcing the pregnant woman's shoulders to move backward accordingly to maintain body balance. The neck is slightly flexed to compensate and maintain the head upright. As a result, the normal curvature of the spine increases, leading to lordosis, which causes local muscle pulling and low back pain symptoms in early pregnancy. Therefore, the closer to full term, pregnant women are more likely to experience neck, back and waist pain.

3. Pregnant women’s physical condition or fatigue

Many pregnant women are prone to fatigue and sleepiness in the early stages of pregnancy. If the pregnant woman’s physical condition is not good enough, it is likely to cause back pain. Some pregnant women insist on continuing to work even though they are pregnant. Overwork, standing or sitting for long periods of time, bending over, and poor standing and sitting postures may all lead to back pain.