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  • With Mayo Clinic obstetrician and medical editor-in-chief

    Roger W. Harms, M.D.

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Question

Ankle swelling during pregnancy: Is it a concern?

What causes ankle swelling during pregnancy — and what can I do about it?

Answer

from Roger W. Harms, M.D.

Various factors may contribute to foot and ankle swelling during pregnancy. For starters, your body simply produces and retains more fluid during pregnancy. Also, your growing uterus puts pressure on your veins, which impairs return of blood to your heart. In turn, this leads to swelling in the legs, ankles and feet.

Foot and ankle swelling during pregnancy is common and almost always goes away after delivery. In the meantime, it may help to:

  • Stay off your feet. Avoid standing or sitting with your feet on the floor for long periods. Don't cross your legs. When you can, sit with your feet up and occasionally rotate your feet at the ankles. Better yet, lie down with your legs elevated.
  • Wear loosefitting clothing. Avoid tight cuffs or jewelry around your ankles and wrists.
  • Sleep on your side. It also may help to elevate your legs slightly with pillows.
  • Stay cool. Heat can aggravate swelling during pregnancy. It might be soothing to apply cold-water compresses to swollen areas.
  • Soak in a large tub or pool. The weight of the water pressing against your body may help reduce swelling.
  • Include physical activity in your daily routine. Take daily walks, ride a stationary bike or swim laps in a pool.

Although mild foot and ankle swelling during pregnancy is normal, extreme swelling during pregnancy can be a red flag. Contact your health care provider if you have:

  • Severe or sudden swelling
  • Swelling in only one leg

Severe or sudden swelling could be a sign of a serious condition called preeclampsia. Other signs and symptoms of preeclampsia include severe headaches, blurred vision and rapid weight gain. Swelling in only one leg — especially if it's accompanied by pain or tenderness in the calf or thigh — could indicate a blood clot. Both conditions warrant prompt evaluation and treatment.

Next question
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References
  1. Bamigboye AA, et al. Interventions for varicose veins and leg oedema in pregnancy. Cochrane Database of Systematic Reviews. 2007:CD001066.
  2. Swelling. March of Dimes. http://www.marchofdimes.com/pnhec/159_16190.asp. Accessed June 2, 2009.
  3. High blood pressure during pregnancy. American College of Obstetricians and Gynecologists. http://www.acog.org/publications/patient_education/bp034.cfm. Accessed June 2, 2009.
  4. Exercise and comfort. In: Simkin PT, et al. Pregnancy, Childbirth and the Newborn: The Complete Guide. Minnetonka, Minn.: Meadowbrook Press; 2001:123.

AN01194

Sept. 12, 2009

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