What could be causing night time leg twitching?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Nighttime leg twitching is most commonly caused by restless legs syndrome (RLS) or periodic limb movement disorder (also known as nocturnal myoclonus). Both conditions trigger involuntary leg movements and uncomfortable sensations during sleep, often disrupting rest. RLS typically involves an urge to move the legs paired with tingling or crawling feelings, while nocturnal myoclonus causes repetitive jerking movements you may not even be aware of. Other potential causes include iron deficiency, nerve issues, dehydration, or certain medications.

Because leg twitching at night can stem from several overlapping causes, identifying the specific trigger is the first step toward relief. Taking a free, instant, online symptom check can help you clarify your symptoms, narrow down possible causes, and decide whether self-care or a doctor's visit is the right next step.

Reviewed for medical accuracy: 07/14/2026

Important Next Steps

Discover what’s causing nighttime leg twitching Learn if leg twitching needs urgent care Find out if it could be restless legs See OTC options for leg twitching relief Find a doctor for leg twitching Discover home remedies for leg twitching Understand likely causes of nighttime leg twitching

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Explanation

Nighttime leg twitching can be caused by conditions like restless legs syndrome (RLS) and nocturnal myoclonus. These conditions make your legs feel uncomfortable, especially when you are lying down or sitting, and can make you feel like you have to move them.

Restless Legs Syndrome (RLS)

Symptoms: RLS causes an urge to move the legs, often due to uncomfortable sensations. These feelings usually happen in the evening or at night when you are resting.
Impact: It can make it hard to fall asleep and stay asleep.

Nocturnal Myoclonus

Symptoms: This condition involves sudden, brief jerks or twitches in the legs during sleep.
Impact: These movements can wake you up or disturb your sleep.

Both conditions can make it hard to get a good night's sleep, and it is important to talk to a healthcare provider if you experience these symptoms. To better understand what might be causing your leg twitching and other symptoms, you can start by taking a free symptom checker test that provides personalized insights in just a few minutes. A healthcare provider can help figure out what is causing the twitching and suggest ways to help you sleep better.

(References)

Lugaresi E, Cirignotta F, Coccagna G, & Montagna P. (1986). Nocturnal myoclonus and restless legs syndrome. Advances in neurology, 3946114.
Rana AQ, Khan F, Mosabbir A, & Ondo W. (2014). Differentiating nocturnal leg cramps and restless legs .... Expert review of neurotherapeutics, 24931546.
Milligan SA, & Chesson AL. (2002). Restless legs syndrome in the older adult: diagnosis and .... Drugs & aging, 12390051.

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