Numbness and Tingling in the Arms and Hands: The Causes

Numbness or tingling in the arms and hands can often be a sign of something serious. This type of symptom can have a wide range of possible causes, some of which are more common than others. It is important to seek medical attention if you experience numbness and tingling in the arms and hands to rule out any serious underlying medical conditions.

Common Causes of Numbness and Tingling

Carpal Tunnel Syndrome is a common cause of numbness and tingling in the hands. This condition is caused by pressure on the median nerve, which runs from the forearm to the palm of the hand. This pressure can be caused by repetitive motions or postures that can put stress on the nerve, such as typing on a computer for extended periods or holding a telephone receiver between the neck and shoulder. Other causes of carpal tunnel syndrome include obesity, pregnancy, thyroid disorders, and diabetes.

Hypothyroidism is a condition in which the thyroid gland does not produce enough of the hormones necessary for proper body functioning. This can cause numbness and tingling in the hands and feet, as well as a feeling of extreme fatigue. Additional symptoms may include poor concentration, low libido, dry skin, and decreased metabolism.

Vitamin deficiencies, particularly of B-vitamins like B12 and B6, can also cause numbness and tingling in the arms and hands. Other deficiencies, such as low levels of vitamin D, may also contribute. A deficiency in calcium and magnesium may also cause numbness and tingling.

Less Common Causes of Numbness and Tingling

Pinched Nerve: A pinched nerve, also known as a compressed nerve, is a condition that occurs when there is pressure on a nerve either by a misaligned vertebra or by inflammation around or near the nerve. This can cause severe pain, as well as numbness, tingling, and a “pins and needles” sensation in the affected area.

Multiple Sclerosis: Multiple Sclerosis (MS) is an autoimmune disorder in which the body’s immune system mistakenly attacks healthy tissues. This can cause a wide range of symptoms, including numbness and/or tingling in the limbs, poor coordination, vision difficulties, and weakness in the limbs.

Tumors: In rare cases, tumors may cause numbness and tingling in the arms and hands. Tumors can compress nerves and cause pain and other symptoms in the area where the tumor is located.

It is important to seek medical attention if you experience any type of numbness or tingling in the arms and hands, as it can be a sign of something serious. Your doctor can run a series of tests to determine the cause of your symptoms and provide you with the necessary treatment.