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Oct 18, 2021 · What is left arm numbness? If your left arm is numb, you can’t feel anything from your shoulder to your hand. You may also have weakness in your arm, or a sense of “pins and needles” or tingling.
- Poor circulation. Share on Pinterest. Aitor Diago/Getty Images. Blocked or compressed blood vessels can interfere with blood circulation to and from the heart.
- Peripheral neuropathy. Peripheral neuropathy includes multiple conditions that damage the peripheral nervous system (PNS). The PNS carries information between the central nervous system — the brain and spinal cord — and the rest of the body.
- Thoracic outlet syndrome. Thoracic outlet syndrome (TOS) refers to a group of conditions that compress the nerves and blood vessels that pass between the collarbone and the first rib.
- Cervical spinal stenosis. Cervical spinal stenosis occurs when the hollow space of the spinal canal narrows, compressing the spinal cord. This compression can cause numbness or weakness in the arms or feet.
- 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.
- 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.
- 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.
- 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.
People also ask
Why is my left arm numb or tingling?
Can a pinched nerve cause numbness and tingling in the left arm?
Can a heart attack cause tingling or numbness in the left arm?
You can have left arm numbness due to your sleeping position or an injury. But it can also indicate underlying health conditions, including heart attack or stroke, that may need medical attention.
- Arm artery disease. When the arteries of the arm narrow or become blocked, oxygen-rich blood can no longer reach the arm. Symptoms include: intermittent pain that occurs during exercise.
- Pinched nerve. A pinched nerve occurs due to injury, compression, or damage to a specific nerve. Sometimes, this affects an arm, causing pain or numbness.
- Peripheral neuropathy. Peripheral neuropathy occurs when damage occurs to nerves in the limbs, such as the arms. The condition affects up to 50% of all people with diabetes, but this is not the only cause.
- Cervical spinal stenosis. “Stenosis” refers to narrowing. In cervical spinal stenosis, the part of the spine between the shoulders narrows, applying pressure to the nerves in that area.
Jul 24, 2017 · Numbness and tingling in your left arm are usually caused by nerves in your shoulder, back, or arm getting compressed. This can cause a burning feeling that tingles down your left arm from your shoulder to the tips of your fingers.
May 27, 2023 · If your hand or arm gets numb, the cause could range from carpal tunnel syndrome to a pinched nerve. No matter the reason, treatments can give you relief as well as get to the root...
