Does your left arm also feel numb? (Left Arm Numbness) - Causes and what to do!

Do you wake up in the morning and suddenly feel like your left arm is numb, tingling, and crawling? Or have you ever had this tingling sensation at any time of the day? This is a very common experience for many people. Sometimes it can be due to a very simple reason. However, in rare cases, it can also be a warning sign of a serious health problem. So today, let's talk about all about this tingling sensation in the left arm.

What does tingling in the left hand mean?

Simply put, your left arm is numb, meaning you can't feel anything from your shoulder to your fingers. Sometimes this tingling sensation can be accompanied by weakness in the arm, a pins and needles sensation, or even a tingling sensation starting in the fingertips.

What are the simple causes of tingling in the hands?

Often the reason for this can be something very simple. Before you panic, consider these things:

• Sleeping in the wrong position: Sometimes we sleep with our arms tucked under our heads. This can cause the nerves and blood vessels in our arms to become compressed, impairing blood flow and causing numbness in our arms. This usually goes away on its own after a while.
• Migraine: Some people may experience tingling on one side of the body, especially an arm or leg, before or at the same time as a migraine headache.

Tingling caused by simple causes like these usually goes away in a short time. But if it persists or is accompanied by other symptoms, we should definitely be concerned about it.

Serious reasons that require immediate attention

Tingling in the left hand can be the first sign of a serious, sometimes life-threatening condition. Let's take a look at each of them one by one.

1. Heart Attack

This is the main reason why many people are afraid when their left arm is tingling. During a heart attack, a coronary artery that supplies blood to the heart becomes blocked. This deprives the heart muscle of the blood and oxygen it needs. As a result, pain or tingling that radiates down the left arm can occur.

This is a medical emergency. If you have these symptoms, immediately take an aspirin (unless you are allergic to it), call 1990 Ambulance Service or go to the Emergency Department (ETU) of the nearest hospital.

2. Stroke

A stroke is caused by a blockage or rupture of a blood vessel that supplies blood to the brain. This cuts off the supply of blood and oxygen to a part of the brain. This can result in numbness or weakness in various parts of the body, especially on one side, such as the left arm.

In addition to numbness in the hands, paralysis can also cause symptoms such as loss of balance, difficulty speaking, slurred speech, drooping of one side of the face, confusion, and a sudden, severe headache . These symptoms may also be a transient ischemic attack (TIA).

This is also a medical emergency. If you have these symptoms, go to the ETU without delay.

3. Spinal Problems

Our spinal cord is where the nerves that run to all parts of the body run. If a problem in the cervical vertebrae (spine) causes a pinched nerve to travel from there to the hand, tingling in the hand may occur.

Just as when a water pipe is compressed, the flow of water decreases, when one of our nerves is compressed, the signals that travel through it are disrupted. That's when tingling and pain occur.

There are several conditions that can cause this:

• Cervical Spondylosis: As you age, the cartilage and discs between the vertebrae in the neck can wear down, causing nerves to become compressed.
• Herniated Disk: A disc between the vertebrae in the neck bulges out and presses on a nerve.
• Spinal Stenosis: With age, the space inside the spine narrows, causing pressure on the nerves.

4. Other Nerve Problems

Some medical conditions can damage our nervous system.

• Carpal Tunnel Syndrome: A condition that causes tingling in the hand and fingers due to compression of the median nerve, a major nerve that runs through the wrist.
• Peripheral Neuropathy: This is a very common condition in people with Diabetes Mellitus . It can also be caused by a deficiency of Vitamin B1 or B12.
• Brachial Plexus Injury: Injury to a network of nerves in the shoulder area.

5. Other reasons

In addition to the main reasons mentioned above, there are several other reasons why the left hand can feel numb.

• Trauma: An accident to the hand, for example a burn or fracture, can damage the nerves and cause tingling.
• Poor Blood Circulation: Vascular disease, a condition in the arteries and veins that carry blood throughout the body, can cause decreased blood flow to the hands, causing numbness.
• Allergic Reaction: Sometimes, if an animal like a spider bites your left hand, the area may swell, itch, and feel tingling due to the allergic reaction.
• Multiple Sclerosis (MS): This is a neurological disease that affects the brain and spinal cord. Tingling in the limbs can be an early symptom of MS.
• Lyme Disease: A bacterial infection transmitted by insects such as ticks.
• Lead Poisoning: Ingestion of lead-containing substances, especially old paints, can cause tingling in the limbs of adults. If you have any doubts about this, you can immediately contact the National Poison Information Center at the Colombo National Hospital for advice.

Are there things you can do at home to relieve tingling?

If you only have tingling in your hands and no other serious symptoms (such as chest pain or difficulty breathing), you can try these simple things before seeing a doctor.

• Place something hot or cold on the area that is tingling (hot/cold pack).
• Massage that area thoroughly.
• Give your hand a rest.
• Slowly stretch your arm or do a simple exercise.

When should you see a doctor immediately?

If you experience any of the following symptoms along with left hand tingling, seek medical advice immediately.

• Confusion, dizziness, or difficulty controlling your body.
• Skin color changes (blue or pale).
• Severe headache.
• Nausea or vomiting.
• Pain in the chest, back, neck, face, or shoulder.
• Paralysis of the shoulder, arm, hand, or face.
• Difficulty walking.
• Difficulty speaking or slurring words.
• Swelling anywhere in the body, especially the hands or feet.
• Difficulty breathing or swallowing.

If you have any of these symptoms, don't ignore them. It's important to seek treatment right away, as they could be a sign of something serious.