A health condition in which people experience involuntary muscle contractions that are painful and can last from a few seconds to several minutes is called leg cramps. They can negatively affect your exercise routine, sleep, and general quality of life. Generally, this condition may happen in people who suffer from certain health conditions or who administer certain medicines. Doctors often recommend flexing a muscle, applying heat or ice, and massaging the affected area when a leg cramp occurs.
In other words, leg cramps are intense, involuntary muscle spasms that often affect the calf, foot, or thigh. Sometimes, it is called “charley horses”. While leg cramps are painful, they are often harmless.
What Are Nighttime Leg Cramps?
This form of leg cramps occurs when a person is not very active or during sleep. In moderate to severe cases, this condition can wake you up and make it harder to fall back asleep. While night leg cramps (also known as nocturnal leg cramps) may affect anyone, it often happens in older adults. For instance, approximately 30% of people over 60 years old have a leg cramp at night at least once every 2-3 months. Moreover, more than 80% of adults over 50 will have a leg cramp at least one time. Pregnant women may also experience leg cramps, and doctors think they happen due to the extra weight that strains the muscles.
What Are The Signs of Leg Cramps?
Usually, leg cramps happen quickly, and there are no warning signs that indicate them. In some cases, pregnant women or people who administer certain medicines may experience a leg cramp as an adverse reaction. A leg cramp often feels like a contracted muscle tightened into a knot. Most of the time, it is uncomfortable and painful. Furthermore, after a leg cramp disappears, the muscle may hurt for a few hours. In any case, if you experience leg cramps, it is advised to see a doctor.
Causes
In some cases, leg cramps happen for unknown reasons (idiopathic leg cramps). Check some possible causes of leg cramps below:
- Stress
- High-intensity exercise
- Involuntary nerve discharges
- A part of the leg does not get enough blood
Doctors have also identified some possible causes of nocturnal leg cramps. These include:
- Overuse of the muscles
- Certain health conditions – For example, kidney failure, diabetic nerve damage, mineral deficits, and problems with blood flow
- Poor posture during the day
- Working or standing on concrete floors
- Sitting for long periods
What Are Medicines That May Cause Leg Cramps?
These include:
- Conjugated Estrogens
- Albuterol/Ipratropium
- Diuretics (also known as water pills)
- Gabapentin
- Clonazepam
- Naproxen
- Statins
- Zolpidem
- Pregabalin
- Zolpidem
- Fluoxetine
- Celecoxib
- Sertraline
There are some cancer treatments that can cause nerve damage and eventually leg cramps.
When Leg Cramps Indicate a Serious Health Condition?
While leg cramps may occur without an obvious reason, some people develop them as a symptom of another disease. That’s why it is recommended to see a doctor if you have a leg cramp. Check some conditions that can cause leg cramps below:
- ALS (amyotrophic lateral sclerosis, also known as Lou Gehrig’s disease) – This is a progressive neuromuscular disease. The term “progressive” means it worsens over time.
- Congestive heart failure – This condition affects the heart’s ability to pump blood efficiently, which may lead to reduced blood flow to the legs.
- Cirrhosis (scarring of the liver)
- Diabetes – This chronic (long-term) disease prevents the body from using the energy effectively from food.
- Flat feet
- Hypokalemia – This condition causes reduced levels of Potassium in the blood.
- Kidney failure – It negatively affects kidney function (one or both), which may cause swelling (edema).
- Osteoarthritis – People who develop this condition will notice that the protective cartilage of the bones is destroyed gradually over time.
- Parkinson’s disease (a neurological movement disorder)
- Peripheral artery disease – In such cases, arteries that supply the legs and arms with oxygen-rich blood are narrowing.
- Peripheral neuropathy – This is a group of health conditions that negatively affect multiple nerves in the body.
What Happens if Leg Cramps Are Left Untreated?
Those who develop leg cramps may also experience some complications, especially if they do not get medical help. Check some examples below:
- Muscle strain
- Sleep deprivation
- Lingering soreness
- Peripheral arterial disease (PAD)
- Venous insufficiency
- Nerve compression
- Metabolic/systemic disorders (including thyroid disease, kidney failure, diabetes, and others)
- Electrolyte imbalances
- Dyspnea
- Deep vein thrombosis (DVT)
This document does not contain a full list of complications. However, you can talk with your physician about ways to reduce the risk or even prevent them.
How to Prevent Leg Cramps?
Physicians may recommend the following tips to reduce the risk of experiencing leg cramps. These include:
- Physical exercise – Physicians usually recommend regular physical exercise (including leg exercises). You should aim for 30 minutes of exercise per day, at least 5 days a week.
- Hydration – Limit or avoid caffeinated and alcoholic beverages, and drink plenty of water.
- Medicines and vitamins – It is very important to take vitamins and medications exactly as recommended by your doctor (especially antibiotics).
- Wear supportive shoes
- Sleeping position – Doctors may recommend different sleep positions to see which one works better for you. For instance, keep your toes up if you are on your back or hand the feet over the end of the bed if you lie on your front.
- Stretch the legs before and after physical exercise and before sleep.
Diagnosis
First, doctors will perform a physical examination to check for irregularities linked to this condition. They may also ask some questions about your symptoms and medical history to get more information. It is also recommended to inform your doctor about all symptoms you experience. Generally, there are no specific tests to diagnose leg cramps, but doctors may perform blood or urine tests to check for an underlying disease.
Treatment
While there are no options that can make a leg cramp disappear, doctors may recommend some tips that can reduce the risk of experiencing one. Examples include:
- Stretch – You should straighten the leg and flex it because it helps stretch the muscles and reduce the risk of a leg cramp.
- Massage – You should use a roller or your hands to massage the muscles.
- Stand – It is also recommended to get up and press your feet against the floor.
- Walk – Do not stay in the same position for long periods.
- Apply heat or cold – Using a heating pad or a bag of ice may ease pain caused by a leg cramp.
- Pain relievers – Physicians may also recommend over-the-counter (OTC) pain relievers (such as Ibuprofen and Acetaminophen).
- Elevate – After experiencing a leg cramp, you can elevate the affected leg because it may help ease the symptoms.
Medicines
The following medications cannot prevent a leg cramp, but in some cases may help reduce the risk. Check some medicines below:
- Diltiazem
- Carisoprodol
- Orphenadrine
- Verapamil
- Magnesium
- Gabapentin
- Vitamin B complex
Frequently Asked Questions
What vitamins may help with leg cramps?
Some healthcare professionals recommend vitamin B complex or magnesium to prevent leg cramps. You should not take them for leg cramps without a doctor’s approval because it may lead to unpleasant outcomes.
Can leg cramps be cured?
Nowadays, there are no options that can cure leg cramps. That’s why the treatment goal is to ease the symptoms, prevent complications, and improve your quality of life.
When should I go to the ER?
Immediately call 911 or go to the nearest emergency room (ER) if a leg cramp lasts for more than 10 minutes, the pain is severe, or it occurs after you have touched a substance that may be poisonous.
Can dehydration cause leg cramps?
Yes. Dehydration is one of the most common factors associated with leg cramps. When the body does not have enough fluids, the balance of electrolytes such as sodium, potassium, calcium, and magnesium can be disrupted, increasing the risk of muscle cramps. Drinking adequate amounts of water throughout the day may help reduce the risk.
Are leg cramps common during pregnancy?
Yes. Leg cramps are particularly common during the second and third trimesters of pregnancy. Experts believe they may occur due to increased weight, changes in circulation, muscle fatigue, and pressure on nerves and blood vessels. Stretching and staying hydrated may help relieve symptoms.
What is the difference between a leg cramp and restless legs syndrome?
Leg cramps and restless legs syndrome (RLS) are different conditions. Leg cramps involve sudden, painful muscle contractions, usually in the calf muscles. However, RLS causes an uncomfortable urge to move the legs, especially during periods of rest, but it does not typically cause severe muscle pain or tightening.
Can poor circulation cause leg cramps?
Yes. Conditions that reduce blood flow to the legs, such as peripheral artery disease (PAD), may contribute to leg cramps. In these cases, cramps often occur during physical activity and improve with rest. A healthcare provider can determine whether circulation problems are contributing to your symptoms.
Are leg cramps more common in older adults?
Yes. The risk of developing leg cramps increases with aging. Muscle loss, reduced flexibility, certain medications, and underlying medical conditions may also contribute to the higher frequency of leg cramps in older adults.
Should I exercise if I frequently get leg cramps?
Regular physical activity is often beneficial because it helps maintain muscle strength and flexibility. However, excessive or intense exercise may trigger cramps in some people. A healthcare provider or physical therapist can recommend an exercise program that is appropriate for your condition.
Can electrolyte imbalances lead to leg cramps?
Yes. Low levels of electrolytes such as potassium, magnesium, calcium, or sodium can interfere with normal muscle function and increase the risk of cramping. If an electrolyte imbalance is suspected, your doctor may recommend blood tests and appropriate treatment to correct the deficiency. If you have any other questions, ask your healthcare provider.
