Muscle Spasms: Causes, Symptoms, and Treatment
Medically reviewed by Sumiran Racherla, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Muscle Spasms?
A primary care doctor, such as a family medicine doctor, can usually check muscle spasms and cramps. A sports medicine doctor, who treats muscle problems, or a neurologist, a nerve doctor, can help if spasms keep coming back. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What are muscle spasms?
Muscle spasms, also called muscle cramps, are sudden, involuntary contractions in one or more of your muscles. They are very common and often occur after exercise. They can be painful, and they may last a few seconds to several minutes.
You can have a cramp in any muscle, but they happen most often in the thighs, feet, hands, arms, abdomen (belly), and the area along your ribcage.
Symptoms
Common signs include:
- Feelings that range from a slight twitch to agonizing pain.
- A muscle that feels hard to the touch, looks distorted, or twitches under the skin.
- A cramp that lasts from a few seconds to 15 minutes or longer.
- Soreness in the muscle for up to 24 hours after the cramp has stopped.
Some people get muscle cramps, especially leg cramps, at night.
Causes and who gets it
Straining or overusing a muscle is the most common cause of muscle cramps. Other causes include:
- Compression of nerves, such as from a spinal cord injury or a pinched nerve in the neck or back.
- Dehydration, which means your body does not have enough water.
- Low levels of electrolytes such as magnesium, potassium, or calcium.
- Not enough blood getting to your muscles.
- Pregnancy.
- Getting dialysis.
Sometimes the cause of muscle cramps is unknown. Some medicines can play a part, such as diuretics (water pills) and statins (used to treat high cholesterol).
Cramps are more likely when you exercise in hot weather, because sweat drains your body's fluids, salt, and minerals.
Anyone can get muscle cramps, but they are more common in older adults, people who are overweight, athletes, and pregnant women. They are also more common in people with certain medical conditions, such as thyroid and nerve disorders.
How doctors diagnose it
Most cramps go away on their own, and you usually do not need a doctor for them. If cramps keep happening, a doctor can examine you to try to find the reason.
Cramps that are severe or frequent could point to problems with circulation, nerves, hormones, medicines, or nutrition.
Treatment
You usually do not need treatment for muscle cramps. You may find relief by:
- Stopping the activity that caused the cramp.
- Gently stretching and massaging the muscle, and holding it stretched until the cramp stops.
- Applying heat when the muscle is tight and ice when the muscle is sore.
- Getting more fluids if you are dehydrated.
- Standing up and putting your weight on the leg with the cramp.
Pain relievers such as paracetamol (acetaminophen) or ibuprofen can ease muscle soreness after a cramp, but they will not help while it is happening because they take too long to work.
If another medical problem is causing the cramps, treating that problem will likely help. Providers sometimes prescribe medicines to prevent cramps, but they are not always effective and may cause side effects.
To help prevent cramps, stretch your muscles, especially before exercising, and stretch your leg muscles before bed if you often get leg cramps at night. Drink plenty of liquids. Sports drinks can help replace electrolytes if you exercise hard or in the heat.
When to see a doctor
Muscle cramps are usually harmless, and they go away after a few minutes. Contact your health care provider if the cramps:
- Are severe.
- Happen frequently.
- Do not get better with stretching and drinking enough fluids.
- Last a long time.
- Come with swelling, redness, or a feeling of warmth.
- Come with muscle weakness.
- Are not linked to an obvious cause such as hard exercise or dehydration.
Cramps can sometimes be a sign of a more serious health condition, such as thyroid disease or cirrhosis (scarring) of the liver. See a doctor if leg cramps also come with numbness or swelling in your legs.
Call 911 if you have sudden, severe pain anywhere in the body, trouble breathing, chest pain or discomfort that lasts two minutes or more, or sudden weakness or dizziness.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. A direct primary care doctor can examine you, review your medicines, check for a cause behind frequent cramps, and refer you to a specialist if needed.
Common questions
Are muscle spasms dangerous?
Usually no, because muscle cramps are usually harmless and go away after a few minutes. But contact your provider if cramps are severe, happen often, or come with weakness, swelling, redness, or warmth.
What causes muscle spasms?
The most common cause is straining or overusing a muscle. Dehydration, low electrolytes, and certain medicines can also play a part. Sometimes the cause is unknown.
How long does a muscle spasm last?
A cramp can last a few seconds to 15 minutes or longer. It might come back several times before it goes away.
How can I stop a muscle spasm?
Stop the activity that triggered the cramp, then gently stretch and massage the muscle, holding it stretched until the cramp stops. Heat can help when the muscle is tight, and ice can help when it is sore.
Sources
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
