5 Signs of a Pinched Nerve You Shouldn’t Ignore

Even if you’ve never had a pinched nerve, you probably know that, whatever it is, it’s not good. After all, when you were a kid, getting pinched was at best annoying and at worst, pretty painful, so having signs of a pinched nerve now is—you might imagine—unpleasant. But what is a pinched nerve, and what causes it? And more important, how can we spot the signs of a pinched nerve, and how can we treat it? You’ll find the answers to all of those questions below.

What is a pinched nerve?

A pinched nerve happens when something puts too much pressure on one of your nerves, be it surrounding bones, cartilage, muscles, or tendons, the Mayo Clinic explains. This interrupts your nerve’s ability to function, causing pain and a bunch of other not-fun symptoms that can feel totally mystifying (we’ll get to that in a second).

First, how do pinched nerves happen?

There are plenty of reasons why you might get a pinched nerve, since basically anything that puts pressure on your nerves can cause one. Potential causes include having an injury, a health condition like arthritis, and physical stress in one part of your body from repetitive work, the Mayo Clinic says. Pregnancy can also raise your risk, since weight gain can swell nerve pathways, compressing your nerves in the process. Diabetes is another risk factor, since diabetes-induced high levels of sugar and fat in your blood can damage your nerves and the blood vessels that nourish them, according to the National Institute of Diabetes and Digestive and Kidney Issues.

Having a pinched nerve may sound really serious, and it can become serious, but if your nerve is compressed for a short time, once that pressure is relieved through rest or treatment, most people recover within a few days or weeks. But if the pressure goes unchecked, you can deal with chronic symptoms and even permanent nerve damage. “It’s always in your best interest to contact your doctor if your symptoms don’t resolve quickly,” Ilan Danan, M.D., a sports neurologist at the Center for Sports Neurology and Pain Medicine at Cedars-Sinai Kerlan-Jobe Institute in Los Angeles, tells SELF.

What are the symptoms of a pinched nerve?

Although you can get symptoms of a pinched nerve in many locations on your body, they often show up in your arms, hands, legs, or feet, depending on the location of the nerve compression, A. Nick Shamie, M.D., professor and chief of Orthopaedic Spine Surgery at UCLA Health, tells SELF. These are the big pinched nerve symptoms to look out for:

To understand why this happens, you have to know that there are three main types of nerves in your body: sensory nerves, which are responsible for you feeling things; motor nerves, which control voluntary movement of your muscles; and autonomic nerves, which take care of automatic organ-related functions like sweating, regulating your blood pressure, and breathing, per the National Institute of Neurological Disorders and Stroke (NINDS).

Your nerves’ job is to transmit signals from one point to another in your body. “Anything that blocks that signal from occurring will result in some manifestation of symptoms,” Dr. Danan says. A pins-and-needles feeling usually means that a sensory nerve is being compressed, he says.

This has a lot to do with pressure causing poor blood flow to the nerve, Dr. Shamie says, offering the example of “being unable to feel your arm in the morning when you wake up because you were lying on it.” Pressure can cause issues with the nerves’ ability to fire, he says. As a result, your hand or arm might feel numb until you relieve the pressure that’s blocking the blood flow.

Read more  What Is A Stroke In Golf – The Definition and Different Types of Strokes

If you notice that this tends to happen when you sit on your leg or rest your arm a certain way, then it goes away when you move, it’s highly likely that you’re just compressing the nerve temporarily with your position, Dr. Danan says. But if it happens seemingly out of nowhere and you’re not sure why, it’s important to check in with a doctor to see what might be causing the compression.

This can happen because something near the nerve is inflamed and compressing it, or the nerve itself is inflamed, Dr. Shamie says. “It’s your body’s way of alerting you that something is going on.”

— Update: 18-03-2023 — cohaitungchi.com found an additional article 7 reasons your left arm is tingling, from a pinched nerve to a heart attack — and when to call 911 from the website www.insider.com for the keyword pinched nerve on left side of body feels like stroke.

  • Tingling is fairly common and usually relates to a problem with your nerves or blood circulation. 
  • Possible explanations include your sleep position, diabetes, a mini stroke, or heart attack.
  • If tingling persists, your doctor can help you find the cause and recommend the right treatment. 

Tingling in your left arm is a pretty common sensation, though you might describe it with a different name, like prickling, “falling asleep,” pins and needles, or numbness. 

Like tingling, all of these are known medically as paresthesia. Depending on the cause, paresthesia can range from slightly noticeable to intensely uncomfortable and painful.

In general, tingling in your left arm relates either to a nerve issue or a problem with blood circulation — but the specific cause can range from something as minor as sleeping on your arm, to a major issue like a heart attack or stroke.

Note: You might use “numbness” and “tingling” interchangeably, but they mean slightly different things. Though they can have the same cause, tingling is a type of sensation, whereas numbness is a total inability to feel.

Below, you’ll find seven explanations for tingling in your left arm and how to treat this symptom. 

1. A pinched nerve in your neck

“A pinched nerve in the neck is one of the most common causes of tingling in the left arm,” says Dave Candy, a physical therapist and owner of More 4 Life

You may also feel pain, numbness, or weakness in your arm, depending on what’s causing the pinched nerve and how severe it is. 

One possible cause is age-related wear and tear, called cervical spondylosis, when disks in your vertebrae thin and weaken. To compensate, your body can grow bone spurs to support the weakened disks. The downside, though, is that spurs can compress nerves, causing pain or tingling in your arm.

A herniated disk can also cause a pinched nerve. When the hard outer layer of a spinal disk weakens and cracks, whether due to aging or injury, the gel-like substance inside the disk can leak out and put pressure on your spinal nerves, causing tingling in your arm.

Keep in mind a pinched nerve in your neck won’t always cause pain in your neck — tingling in your arm may be the only symptom. 

What to do next: You can often treat a pinched nerve in your neck at home with the RICE method — rest, ice, compression, elevation — or with nonsteroidal anti-inflammatory drugs (NSAIDS), like Advil or Motrin.

If the tingling doesn’t improve, a good next step involves checking in with your doctor. You’ll also want to call your doctor if you notice any weakness in your hands, fingers, or arm. 

It’s especially important to get medical attention if you feel numbness or tingling along your bicep and forearm to your thumb, or on the back of your upper arm, down your forearm to your middle finger. The path tingling takes down your arm can help indicate which spinal nerve is being compressed.

Your doctor might recommend:

Read more  What to Expect After a Stroke: Tips for the Stroke Caregiver

2. Heart attack 

During a heart attack, a coronary artery is completely or partially blocked, along with nerves that supply the heart. This lack of blood flow can indirectly cause tingling or numbness in the left arm, says Dr. Sean Ormond, a specialist in interventional pain management at Atlas Pain Specialists.

Common signs of a heart attack include chest pain or pressure and shortness of breath. But heart attacks can also have subtle signs that may go unnoticed or be mistaken for other health concerns, especially in women and older adults. Other potential signs of a heart attack include: 

  • Nausea
  • Indigestion
  • Cold sweats
  • Dizziness
  • Upper back pressure or pain

What to do next: A heart attack can be life-threatening. If these symptoms come on suddenly, it’s best to get emergency medical attention by calling 911 — even if your symptoms don’t feel all that severe.

3. Type 2 diabetes

Type 2 diabetes and consistently elevated blood sugar can cause peripheral neuropathy — damage to the nerves outside of the brain and spinal cord, Ormond says.

This type of nerve damage usually begins in the feet and legs, but it can also affect your hands and arms as it progresses. Along with numbness and tingling, it can cause a burning sensation or sharp pain in your extremities. 

​​It can have other serious consequences, too: If you can’t fully feel your arm, you may have a harder time noticing changes in temperature, pain, or injuries that could lead to dangerous infections.

What to do next: To lower your risk of peripheral neuropathy, you can:

  • Manage your blood sugar
  • Aim to exercise regularly, if you’re able. Current guidelines recommend either 150 minutes per week of moderate aerobic exercise, like brisk walking or swimming, or 75 minutes per week of intense aerobic exercise, like running or aerobic dancing.
  • Eat a balanced diet that features a variety of fruits and vegetables, whole grains, and lean proteins.

You should seek prompt medical care if you start to notice unusual tingling or numbness in your hands and feet, as early treatment can help prevent further nerve damage.

4. Transient ischemic attack (mini stroke)

A transient ischemic attack (TIA), also called a mini stroke, can cause temporary tingling in your limbs, including your left arm.

TIAs occur when a blockage temporarily disrupts blood flow to the brain. Unlike a stroke, which often has severe and long-lasting repercussions, symptoms of a TIA typically last just a few minutes — they come on suddenly and usually will resolve within one hour to one day.

Along with tingling, weakness, or numbness in your arm, a TIA can cause:

  • Slurred or unclear speech
  • Difficulty understanding other people’s speech
  • Balance issues and lack of coordination
  • Double vision, blurred vision, or temporary vision loss

What to do next: Though TIAs don’t cause permanent damage, they can suggest you have a higher risk of stroke. About one in three people who have a TIA will go on to have a stroke, and half of those strokes occur within one year of a TIA. 

If you experience any symptoms of a TIA, you should call 911 or go to the emergency room right away for an evaluation. 

Your doctor may prescribe blood thinners like aspirin to help prevent the blood clots that can cause a stroke

In some cases, your care team may recommend surgery to clear your carotid artery of plaques which can lead to stroke, either by:

  • Endarterectomy: The surgeon will make an incision, remove the plaques, and close the artery again. 
  • Angioplasty: The surgeon will insert a small mesh tube, called a stent,  into the artery to keep it clear and open.

5. Carpal tunnel syndrome

Carpal tunnel syndrome can develop due to compression of the median nerve, which gives sensation to parts of your hand. 

“Carpal tunnel syndrome is usually caused by repetitive use of the hands such as manual labor, typing, using a mobile phone too much, or working on an assembly line,” Candy says.

Read more  Symptoms of a Parietal Lobe Stroke

With carpal tunnel syndrome, you’ll mainly feel tingling or numbness in your thumb, index, and middle finger, typically on one side of your body, but you could also experience tingling and pain that travels up your forearm.

What to do next: A healthcare professional can diagnose carpal tunnel syndrome and recommend treatment, which may include:

  • A wrist brace: When worn at night, a brace keeps your wrist straight, putting less pressure on the median nerve.
  • Steroid injections: Cortisone and other steroids can help ease inflammation and swelling of the tendons in your wrist, which reduces compression of the median nerve.
  • Surgery: Carpal tunnel release, a brief outpatient surgery, involves a surgeon cutting the ligament in the wrist that is compressing the median nerve — most people will be back to normal activities within four to six weeks.

6. Multiple sclerosis

Multiple sclerosis (MS) is an autoimmune disease of the central nervous system — the brain and spinal cord — that affects nearly one million people in the United States.

In MS, damage and deterioration of the myelin sheath, or the lining of your nerves, can cause a wide range of symptoms. Tingling in your arm is often an early symptom — but unexplained tingling in your arm doesn’t always suggest MS. 

With MS, you’ll likely also experience numbness and tingling in your legs, torso, and face — not just your left arm. 

What to do next: It’s a good idea to make an appointment with a healthcare professional if you experience tingling in your arm along with other common initial symptoms of MS, such as: 

  • Muscle weakness
  • Balance problems
  • Excessive fatigue
  • Vision problems, including blurred or double vision or loss of color vision, especially when these issues affect just one eye 

There is no cure for MS. Treatment focuses on managing symptom flare-ups with medications like glucocorticoids and physical or occupational therapy to help maintain mobility and function. Medications that modify immune system activity can also help reduce inflammation and slow the progression of MS.

7. How you sleep 

Tingling in your left arm can also relate to your sleeping position.

Certain sleep positions can cause the nerves in your arm or neck to compress during the night. For example, this might happen if you:

  • Sleep with your arm bent or your hand in a fist
  • Rest your head on your arm while sleeping
  • Sleep on your stomach
  • Sleep on your side without supporting your arm

What to do next: If you consistently wake up with your arm tingling, it could help to try a different sleep position. To find a more comfortable sleep position, try: 

  • Keeping your hand flat on a pillow, rather than closed into a fist
  • Sleeping on your back, with your arms at your side or on pillows. This is the best position to support the nerves in your neck and arm that can cause tingling.
  • Sleeping on your side with a pillow in front of you to support your arm and help keep your wrist and fingers straight.
  • Placing a pillow under your knee on the side you face when sleeping on your stomach. This will ease some of the pressure on your neck.

Insider’s takeaway

Tingling in your left arm is a common sensation. If it happens now and then but goes away on its own, you most likely have nothing to worry about. 

However, you’ll want to pay attention to tingling in your arm that keeps coming back, shows up with other symptoms, or gets worse over time. 

This kind of tingling can suggest an underlying health condition, so you’ll want to make an appointment with your doctor as soon as possible. They can help determine the cause of the tingling and offer more guidance on options for treatment. 


Recommended For You

About the Author: Tung Chi