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Leg Cramps at Night: Causes, Prevention & Treatment

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Nighttime Leg Cramps: Causes, Prevention & Treatment

Have you ever been woken up in the middle of the night by a strong cramp in your leg that felt as if it was going to tear your muscle apart? A nighttime spasm or tightening of a muscle is a common, usually harmless, occurrence that most often affects muscles of the calf, thigh or foot.

It can cause a lot of pain and steal away a chunk of your precious sleep. Although no one is immune to them, cramps are more common in older people, and about 1 in 3 people over the age of 60 experience them regularly.


There are some simple steps you can take to prevent the cramps and ease their onset. In some cases, it’s also important to look for the underlying cause and address it.

What Causes Muscle Cramps?

In many cases, the reason for these painful contractions is unknown – in the medical jargon, the condition is referred to as ‘idiopathic leg cramps’.

Other reasons could be:

  • Extreme exercise – you may have been exercising a lot and the muscles got tired, so they started to spasm.
  • Pregnancy –   pregnancy can be associated with nighttime cramps, especially in the later stages.

In some cases, however, cramps are a symptom of another problem you might not even be aware of. Some of the conditions that can cause leg cramps include:

Dehydration – when your body loses a lot of fluids, the salt levels get depleted, which can trigger the muscles in the legs to contract. Usually, the reason for dehydration is not drinking enough, but severe diarrhea and vomiting can cause it as well. Make sure you are aware of the 7 warning signs of dehydration.

Deficiency in potassium, calcium or other minerals (such as magnesium).

Specific medical conditions such as kidney disease, thyroid disease (see the signs in this post), liver problems and multiple sclerosis.

Conditions that affect the blood flow, for example, peripheral arterial disease.

Some infections or exposure to toxins – for example, high levels of lead or mercury can result in leg cramps. You may want to try this heavy metal detox smoothie.

Cramps can also be a side effect of some medicines you might be taking. Examples include:

  • Diuretics
  • Medications to lower high cholesterol (statins)
  • Some anti-psychotic drugs
  • Birth control pills
  • Steroids

How to Deal with Cramps When they Happen?

The sudden pain can be excruciating and it’s good to have a technique you can easily employ.

Stretch and massage the area. You can also try some stretching positions: bend your foot at the ankle, so that your toes are pointing toward the shin. Initially, this might be very painful, but the pain will subside.

Doing stretching exercises is also one of the 70 habits featured in my e-book 70 Powerful Habits For A Great Health which will guide you how to take positive steps to improve your wellness and overall health.

Take a warm shower or a bath. For a quicker relief, use a heating pad.

Some experience pain relief if they apply some ice or a cold pack.

Walk around and jiggle your painful leg. Try walking on your heels, which will stretch the muscle.


Painkillers usually don’t act fast enough to help with cramping. You can take paracetamol to ease the muscle tenderness which can persist for up to 24 hours after the cramp occurs.

The Best Ways to Prevent Muscle Cramps

If you think that cramps are brought on by your medications, discuss it with your doctor to see if there are any alternatives.

If you experience some other symptoms that might be worrying you, get it checked out to exclude any possible secondary reasons.

Make sure you drink enough water and don’t drink alcohol in excessive amounts.

Eat a balanced diet and ensure you get enough potassium, calcium and magnesium (make sure you are aware of the warning signs of magnesium deficiency). You might need to consider taking a supplement if you feel you are not getting enough vitamins and minerals with your daily diet.

Many doctors believe that stretching exercises can ease the frequency and severity of the cramps. The research on the subject is limited and the findings non-conclusive; however, it might be a good approach to try.


Stretching of the calf muscles

Stretch the affected muscles 3 times a day for about 5 minutes. Always stretch before and after exercise, and do the last session just before going to bed. It might take a few weeks before you notice any results, but persevere and you are likely to experience some improvement over time. To stretch the muscles:

Stand 60 to 90 centimeters from the wall.

Keep the soles of your feet on the floor and lean towards the wall.

Feel the muscles stretch and hold this position for 20 to 40 seconds.

Relax the muscles and then repeat again.

When to See a Doctor?

In most cases, nighttime cramps are just an annoyance and they quickly pass on their own. However, according to webMD you should see a doctor if you experience the following:

Severe and persistent cramping.

You think you had been exposed to a toxin such as lead.

You observe muscle weakness.

The cramping is preventing you from sleeping, which in turn affects your day to day life.

In the past, the medication quinine had been used as the last resort for treating leg cramps. It is no longer recommended as clinical studies did not prove its effectiveness. It also comes with potentially very serious side effects. Your doctor might consider other treatment options and/or ask you to keep a ‘sleep and cramp’ diary.

Nighttime leg cramps should not be mistaken for restless leg syndrome (RLS), which is a separate condition that presents with unpleasant feelings and sensations and an urge to move. Pain is not the main feature of RLS. However, RLS can sometimes be the cause of night cramps.

Read my other articles to learn how to naturally treat pain and to learn about the best exercises for your legs:
1. Top Exercises to Tone Your Legs and Butt At Home
2. Effective Yoga Stretches For Sciatic Nerve Pain Relief
3. Effective Treatments for Pulled, Strained or Torn Calf Muscle
4. The Top 16 Essential Oils to Relieve Pain and Inflammation

Medical Resources

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17 Responses to Leg Cramps at Night: Causes, Prevention & Treatment

  1. marcel says:

    Have you heard this one,drink tonic water before going to bed..seems to work.What is in tonic water?carbonated water,citric acid,potassium benzoate,quinine hydrochloride.Good luck to all.

  2. Abel says:

    To prevent leg muscles cramps during the night I take a coffee spoon of 100% pure magnesium chloride before going to bed… It is rather bitter but you can smooth it by mixing with any fruit juice (natural or bottled)… it is effective.

  3. Ranabir says:

    Take a cup of tonic water once a week before going to bed

  4. Kendra says:

    I usually get them if I stretch my leg too far or when my leg is too warm. I usually have to hobble to the bathroom so that I can put my foot in the shower while running cold water. That is the only way that works for me to get rid of the cramping/charlie horse in my calf and foot.

  5. Nicole says:

    The best way to relieve a muscle cramp is to soak a cotton round in ACV and rub it over the cramping muscles. Works like a charm!

  6. Winnie Tsitsi says:

    For more than 3 years I have been suffering from severe cramps esp in my legs but also my hands, stomach up towards chest area. When I get then, i cry and cry out in so much pain it drains out my energy. It’s become my worst nightmare. I have told the doctors who prescribed calcium carbonate. It helped a bit I guess.
    I was told of magnesium so I found out about the MagCarb oil for cramps. Wonderful reliever but I find it’s not as effective as when I first used it. It’s still my best fiend though. I can’t go anywhere without it. Then I starting using very hot water in which a small towel is soaked and wrapped around the affected area. If one massages on the towel wrapping the affected area, it’s a great reliever.
    Unfortunately, I am a diabetic. It could be something to with my kidneys. I take medication everyday for 20+ years to date
    I just want to share my experience with those suffering from this most’idiotic’ ailment.
    I also used acv but it was aggravating to my vocal chords which I need to sing so I stopped. I noticed it helped so I’m thinking of going back to it.
    I hope the above helps.

  7. Shubh says:

    Best n easiest thing to do to avoid cramps is to keep ur legs covered and warm all the time at night. It happens 99.9% of the time when your leg gets cold at night!
    Tried n tested over 30 years! (Y)

    • Ken says:

      Shubh, you are absolutely right, but there is more to it. Factors may be different for different individuals. For me, there are 3 precipitating factors; 1), being cold in bed, 2), having pressure on my lower legs with tight bed covers, and 3), resting my upper leg and thereby inducing pressure on the calf of the lower leg.
      The solution to these problems is to sleep under a duvet that is sufficiently warm with the addition of another light warm duvet just covering below the waist. I use a duvet designed for a baby’s cot

  8. Barbara says:

    Thank you for this information. My leg pain wakes me up often about 4 am. I take a walk down the hallway and have a drink of water. If I feel rested, I get up and have my one cup of coffee, work on my computer till about 10 am, and occasionally I will feel a twitching sensation in my lower legs, so I just keep them warm and straighten them out or move them when I feel the twitching. This is nearly a daily annoyance. I am 77 years of age, female, and am generally healthy. I drink bottled ph-balanced water with electrolytes and take a magnesium supplement at bedtime. I say an affirmation that I will sleep sound without any bodily pain. It usually works.

  9. Susan says:

    Hot water bath can also help you to get rid of muscle cramps. Also, add BCAA to your diet for more added benefits of muscle recovery.

  10. Maria says:

    i go to the shower let hot water run through my legs relaxes the muscle instantly.

  11. Bonnie says:

    I find that taking one hit of cannabis relieves the cramp instantly. Fortunately, I live in a legal state.

  12. Teri says:

    I find that when my legs get TOO warm is when I get a cramp — guess I am weird. But a remedy that works instantly and without fail (at least for me)is– 2 teaspoons apple cider vinegar, 1 teaspoon honey and enough warm water to make it drinkable. Works every time! I mix it up ahead, refrigerate and take a shot when needed. I have also read that pickle juice will work.

  13. Henry says:

    I keep a bottle of Mag Po on the night stand. I mow most every day in the rainy season, I try to be well hydrated but day after day of sweating like a racehorse takes it outta me. So if I wake with a cramp or it hits me on the sofa or in a chair, I put 3-4 of those tablets under the tongue and that generally sorts out tat problem for the night

  14. Joseph says:

    On an occasion when I have a cramping leg , I stand up and put weight on the cramping leg . The cramp stops .It works very rapidly for me . The first was the worst ! If my neighbors heard me they may have thought I was being murdered . Knowing how to stop it helps immensely .

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