Pins and Needles in Left Arm & Hand: Causes & Potential Solutions

Potential causes of pins and needles in your left arm and hand for two days:

- Nerve compression: This can occur when a nerve is compressed by nearby tissues, such as muscles, tendons, or bones. Common causes of nerve compression include carpal tunnel syndrome, cubital tunnel syndrome, and thoracic outlet syndrome.

- Peripheral neuropathy: This is a condition that affects the nerves in your body, often causing symptoms such as tingling, numbness, and pain. Common causes of peripheral neuropathy include diabetes, vitamin B12 deficiency, and certain autoimmune disorders.

- Cervical radiculopathy: This refers to a pinched nerve in the neck, which can cause pain, numbness, and tingling in the arm and hand.

- Herniated disc: A herniated disc in the neck or upper back can put pressure on the nerves that supply the arm and hand, leading to symptoms such as pins and needles.

- Stroke or transient ischemic attack (TIA): These conditions can disrupt blood flow to the brain, which can cause a variety of symptoms, including numbness or weakness on one side of the body, including the arm and hand.

If your symptoms persist or worsen, or if you have any associated weakness or numbness, it's important to see a doctor for proper diagnosis and treatment.