What condition can lead to carpal tunnel syndrome (CTS) during pregnancy?

Fluid retention during pregnancy is a significant factor that can lead to the development of carpal tunnel syndrome (CTS). As pregnancy progresses, the body retains more fluid due to hormonal changes, increased blood volume, and the pressure from the growing uterus. This fluid accumulation can result in swelling in various parts of the body, including the wrists.

In the carpal tunnel, where the median nerve passes, the swelling can lead to increased pressure on this nerve. This pressure can cause symptoms typical of CTS, such as numbness, tingling, weakness, and pain in the hand and fingers. The combination of anatomical factors and fluid retention makes pregnant individuals more susceptible to developing this condition.

While hormonal changes also play a role in pregnancy, the specific impact of fluid retention on the structure and pressure dynamics within the carpal tunnel directly connects to the onset of symptoms. Decreased muscle strength may occur due to a variety of reasons during pregnancy but is not a direct cause of CTS. Peripheral neuropathy is generally a condition caused by other underlying issues, such as diabetes or systemic illnesses, rather than a typical pregnancy-related change. Thus, fluid retention stands out as a primary contributor to CTS in pregnant individuals.