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March 9, 2021
By Emeline Mugisha, M.S.N., M.P.H., R.N
Restless legs syndrome (RLS) is a common health problem during pregnancy. Studies show that RLS is two to three times higher in pregnant women than non-pregnant women, suggesting that pregnancy is a significant risk factor for RLS. While the condition is fortunately not life-threatening, severe cases may disrupt a person’s quality of life and daily activities.
RLS is a condition that causes an involuntarily and sometimes overwhelming desire to move your legs, typically because of uncomfortable sensations in your feet, calves, and thighs.
Though it’s often difficult to explain what RLS feels like, people generally describe abnormal, unpleasant feelings, such as throbbing, aching, tingling, crawling, or pulling. These sensations may affect one side but most often affect both sides of your body and are felt within the limbs rather than on the skin's surface. In some cases, RLS may also affect your arms.
The main symptom of RLS is an urge to move your legs. Other significant features may include:
RLS may begin at any age and can range from mild to severe. Additionally, symptoms vary depending on the day, person, and duration of the illness. For example, some people may have symptoms occasionally, while others may have them every day. However, symptoms generally come and go during the early stages of RLS and become more frequent and severe with time.
There are two different types of RLS: primary and secondary. Primary RLS tends to affect multiple family members and has no known cause. In most cases, the cause of RLS is unknown, making primary RLS more common. Secondary RLS occurs less often and has a known cause.
Examples of secondary RLS include RLS that develops due to pregnancy or medical conditions, such as kidney disease, heart disease, or iron deficiency.
RLS affects about 1 in 5 pregnant women, and most cases occur during the third trimester (the last three months of pregnancy). Often, RLS either appears for the first time or worsens in pregnancy. In most cases, symptoms of RLS disappear within four weeks of giving birth.
Research suggests that both childbirth and the number of deliveries are risk factors for RLS. Specifically, women who have given birth are more likely to develop RLS than women who haven’t given birth. And, the risk of RLS is higher among women who have had multiple births.
It remains unclear why there is a link between RLS and pregnancy.
Whether pregnancy-related or not, untreated RLS may lead to exhaustion and fatigue, which impacts daytime concentration and may trigger depression. In general, conditions that reduce the quality of sleep you receive also harm your overall well-being, including mental health.
A 2020 study found that moms with RLS during pregnancy and 12 weeks postpartum have a higher risk of developing baby blues shortly after birth. While the study found no connection between RLS in pregnancy and postpartum depression, women who experienced RLS were more likely to have a history of mental illness and exposure to stressful life events.
Non-drug therapies, such as self-management and lifestyle changes, can help relieve mild RLS.
Self-management strategies include:
Lifestyle changes include:
If your symptoms are severe or do not improve with non-drug therapies, you may require medication. Speak with your provider to develop a treatment plan that will work best for you.
Goecke, T. W., Schnakenberg, P., Frensch, M., & Chechko, N. (2020). Restless legs syndrome during pregnancy and 12 weeks postpartum and its links to cardiovascular diseases, stressful life events, and psychiatric history. Journal of Clinical Medicine, 9(9), 3046. https://doi.org/10.3390/jcm9093046
National Health Service (UK). (2018, August 16). Restless legs syndrome. https://www.nhs.uk/conditions/restless-legs-syndrome/treatment/
Srivanitchapoom, P., Pandey, S., & Hallett, M. (2014). Restless legs syndrome and pregnancy: a review. Parkinsonism & Related Disorders, 20(7), 716–722. https://doi.org/10.1016/j.parkreldis.2014.03.027
Emeline Mugisha, M.S.N., M.P.H., R.N. - Emeline Mugisha is an award-winning, master's-prepared nurse with over a decade of experience in community/public health and clinical health services at the field and management levels. She has co-authored two professional manuscripts in Women's Health Issues and the Journal of Midwifery and Women's Health. She has an M.S. in Public Health Nursing and an M.P.H. from Johns Hopkins University.
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