Joint pain

Joint pain during pregnancy: The impact of relaxin and weight

A dull ache in the knees, wrists, fingers, or ankles can become an unexpected symptom of pregnancy. Many people attribute it only to weight gain, but the main role is played by hormonal remodeling that prepares your body for childbirth.

Why do joints become vulnerable?

• Hormone relaxin: This is the primary cause. It is produced to soften the ligaments and joints of the pelvis, but it acts systemically throughout the body. As a result, all your joints — from the hip joints to the small joints of the hands — become more mobile and less stable, which can cause discomfort and pain under load.
• Weight gain: The extra weight you carry creates significant stress on weight‑bearing joints such as the knees, hips, and ankles. Knowing the norms of weight gain is important for every mother.
• Fluid retention: Swelling can create additional pressure inside joint capsules, especially in the wrists (leading to carpal tunnel syndrome) and ankles.

This pain is usually not a sign of arthritis or another inflammatory disease and subsides after delivery. However, if the pain is severe, accompanied by marked swelling, redness, or limited mobility, you should consult a doctor. Moderate physical activity, especially swimming, can significantly relieve the condition.