A woman’s body produces additional amounts of blood and body fluids to meet the needs of a growing fetus, and swelling is usually a normal part of this process. While most swelling is nothing to be concerned about, there are some causes of hand swelling during pregnancy that may be a sign of something more serious, or at the very least, may require medical attention.
This additional fluid buildup causes edema, which is the term for swelling and usually occurs during pregnancy. According to the Baby Center website, normal blood chemistry changes cause some of these fluids to shift in your body’s tissues, which can cause swelling in the hands, face, legs and ankles. Edema becomes noticeable usually around the fifth month of pregnancy, and often grows more obvious during the third trimester. Edema is often at its worst at the end of the day, particularly on hot days.
Sudden swelling in the hands, feet, face or ankles, or swelling that is more than slight, can be a sign of preeclampsia. Preeclampsia causes blood vessels to constrict, according to the American Pregnancy website, which leads to high blood pressure and reduced blood flow to vital organs. When the blood vessels constrict, some of the capillaries may begin to leak, which causes the telltale sign of swelling. Preeclampsia is a serious pregnancy condition that can be dangerous and even fatal to both mother and baby if untreated. It is therefore critical to contact a medical professional immediately if these symptoms occur.
Carpal Tunnel Syndrome
Water retention and swelling in the hands can put pressure on the median nerve in the hands and cause carpal tunnel syndrome. Carpal tunnel syndrome can cause pain, numbness, burning or tingling in the palms, wrist and fingers. BabyPartner website writes that this condition is most aggravated in the morning after fluid has accumulated overnight but usually disappears once the baby is born.