Title: What causes numbness in the left arm and hand? - Blog | Everlywell: Home Health Testing Made Easy
Headings: What causes numbness in the left arm and hand?
What causes numbness in the left arm and hand?
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What causes tingling in the left arm?
Inadequate blood flow
Nerve injuries
Hypothyroidism
Herniated disc
Vitamin B12 deficiency
Fractures
Carpal tunnel syndrome
Cubital tunnel syndrome
Diabetic neuropathy
Multiple sclerosis
Stroke
What to do if you experience numbness or tingling in the left arm

Content: This condition can cause numbness, tingling, and pain in the fingers, hand, forearm, and elbow—especially when the elbow is bent for a long period of time (such as during sleep). Treatment options for cubital tunnel syndrome include surgery, elbow braces, and more. Diabetic neuropathy
Nerve damage caused by diabetes is referred to as diabetic neuropathy. Diabetes is associated with chronically high levels of blood glucose—which can result in nerve damage. Symptoms of diabetic neuropathy will vary from person to person depending on the type of neuropathy they have, but numbness and tingling in the limbs are common symptoms. Diabetic neuropathy affects more than half of all people who have diabetes—but working closely with one’s care team to manage blood sugar levels may help reduce the risk. Regular HbA1c testing is a key part of managing diabetes. You can easily check your HbA1c from the comfort of home with our at-home A1c test (which requires only a simple finger prick to collect a small blood sample). Multiple sclerosis
A tingling and numb left arm may be an early sign of multiple sclerosis (MS). This nervous system disease damages the material that surrounds and protects nerve cells, slowing down or blocking messages between your brain and body.