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

Tingling in the left arm is a very common feeling, although you may describe it by different names, such as tingling, “falling asleep,” a tingling sensation, or numbness.

Like stings, all of which are medically called feeling abnormal. Depending on the cause, paresthesias can range from mildly marked to extremely uncomfortable and painful.

Generally, a tingling in the left arm is related to a nerve problem or a circulation problem — but the specific cause can range from sleeping on the arm as a child to a heart attack or stroke.

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

1. Compressed nerves in the neck

“Compressed nerves in the neck are one of the most common causes of tingling in the left arm,” says Dave Candyphysiotherapist and owner more 4 lives.

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

One possible cause is age-related wear and tear, called cervical spondylosis, when the discs in your vertebrae thin and weaken.As compensation, your body can grow Bone spur to support the weakened disk. The downside, though, is that the spurs can compress the nerve, causing pain or tingling in the arm.

One herniated disc It may also cause nerve compression. When the hard outer layer of the disc weakens and ruptures from aging or injury, the gel-like substance inside the disc can ooze out and compress the spinal nerves, causing tingling in the arm.

Remember the nerves in the neck are compressed Does not always cause neck pain — A tingling in the arm may be the only symptom.

If the tingling does not improve, the next step is to see a doctor. You also need to call your doctor if you notice any weakness in your hands, fingers or arms.

It is especially important to seek medical attention if you have numbness or tingling in your biceps and forearm to thumb or back of upper arm, forearm to middle finger. The path of the tingling in the arm can help indicate which spinal nerve is compressing.

Your doctor may recommend:

2. Heart attack

During a heart attack, the coronary arteries and the nerves that supply the heart are completely or partially blocked.Lack of blood flow can indirectly cause tingling or numbness in the left arm, says Dr. Sean OrmondInterventional Pain Management Specialist Atlas Pain Specialist.

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

  • nausea
  • indigestion
  • cold sweat
  • Dizziness
  • upper back pressure or pain

3. Type 2 diabetes

Type 2 diabetes and persistently elevated blood sugar can lead to peripheral neuropathy — Ormond said, causing damage to nerves outside the brain and spinal cord.

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

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

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

If you start to notice unusual tingling or numbness in your hands and feet, you should seek medical attention right away, as early treatment can help prevent further nerve damage.

4. Transient ischemic attack (mini-stroke)

One Transient ischemic attack (TIA)also known as mini strokemay cause temporary tingling in the extremities, including the left arm.

A TIA occurs when a blockage temporarily interrupts blood flow to the brain. Unlike strokes, which often have severe and long-lasting effects, TIA symptoms typically last only a few minutes—they come on suddenly and usually resolve within an hour to a day.

In addition to tingling, weakness, or numbness in your arms, TIAs can also cause:

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

If you develop any symptoms of a TIA, you should call 911 or go to the emergency room immediately for evaluation.

Your doctor may prescribe blood thinners like aspirin to help prevent blood clots may cause a stroke.

In some cases, your care team Surgery may be recommended Remove plaque from your carotid arteries that can cause a stroke by:

  • Endarterectomy: The surgeon will make an incision, remove the plaque, and then close the artery again.
  • Angioplasty: The surgeon will insert a small mesh tube called bracketinto the artery, keeping it open and unobstructed.

5. Carpal Tunnel Syndrome

carpal tunnel syndrome May develop due to compression of the median nerve, which can cause sensation in your hand.

“Carpal Tunnel Syndrome is usually by Reuse of hands, such as manual labor, typing, excessive cell phone use, or working on an assembly line,” Candy said.

With carpal tunnel syndrome, you mainly experience tingling or numbness thumb, index and middle fingersusually on one side of your body, but you may also experience tingling and pain in your forearm.

What to do next: Healthcare Professionals Can Diagnose Carpal Tunnel Syndrome and Recommend treatwhich may include:

  • a bracer: When worn at night, the brace keeps the wrist straight and reduces pressure on the median nerve.
  • steroid injection: Cortisone and other steroids help relieve inflammation and swelling of the wrist tendons, thereby reducing compression of the median nerve.
  • Operation: Carpal tunnel release is a brief outpatient procedure that requires the surgeon to cut the ligament that compresses the median nerve in the wrist—most people return to normal activities within four to six weeks.

6. Multiple Sclerosis

multiple sclerosis (MS) is a self-immune Central Nervous System Disorders – Brain and Spinal Cord – Almost Affecting one million people In the United States.

In MS, damaged and deteriorated myelin sheathor the lining of your nerves, can cause a wide range of symptoms. tingling It’s usually an early symptom in your arm – but unexplained tingling in your arm isn’t always indicative of MS.

With MS, you may also experience numbness and tingling your legs, torso and face – Not just your left arm.

What to do next: It is best to make an appointment with a healthcare professional if your arm is tingling along with others Common initial symptoms MS, for example:

  • muscle weakness
  • balance problem
  • Excessive fatigue
  • vision problemsincluding blurred or double vision or loss of color vision, especially if these problems affect only one eye

There is no cure for MS. treat Focus on managing symptoms with medications such as glucocorticoids and physical or occupational therapy to help maintain mobility and function. Drugs that alter the activity of the immune system can also help reduce inflammation and slow the progression of MS.

7. How you sleep

Tingling pain in the left arm may also be associated with your sleeping position.

Certain sleeping positions can cause nerves in the arms or neck to be compressed at night. For example, if you:

  • Bending or clenching your arms while sleeping
  • sleep with your head on your arm
  • sleep on your stomach
  • Sleep on your side without arm support

What to do next: If you keep waking up with a tingling in your arm, trying different sleeping positions may help. To find a more comfortable sleeping position, try:

  • Put your hands flat on the pillow instead of clenching your fists
  • Sleep on your back with your arms by your side or on your pillow. This is the best place to support nerves in the neck and arms that can cause tingling.
  • Sleep on your side with a pillow in front of you to support your arms and help keep your wrists and fingers straight.
  • When sleeping on your stomach, place a pillow under your knees, on the side of your face. This will relieve some of the pressure on your neck.

Insider Takeaways

Tingling in the left arm is a common feeling. If it happens from time to time but goes away on its own, you most likely have nothing to worry about.

However, you need to be aware of tingling in your arm that can recur, develop other symptoms, or get worse over time.

This tingling may indicate an underlying medical condition, so you need to make an appointment with your doctor as soon as possible. They can help determine the cause of the tingling and provide more guidance on treatment options.

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