Tingling fingers can be caused by lack of blood supply, physical conditions like hypothyroidism and carpal tunnel syndrome, mental health disorders, and diseases affecting the nervous system like uncontrolled diabetes and Lyme disease.
An extremely common cause of tingling fingers is a lack of blood supply. Cutting off blood circulation by sleeping or sitting in the wrong position for a long time can limit the amount of blood flow. A condition called arteriosclerosis also causes tingling in the fingers. Atherosclerosis is a buildup of cholesterol in the arteries that can cause tingling and numbness in the affected area. Other conditions that can cause tingling in your fingers include hypothyroidism, Raynaud’s syndrome, and carpal tunnel syndrome.
Swelling and other effects of certain physical conditions can also cause tingling in the fingers. Hypothyroidism is a condition that can cause swelling in the upper arms. As a result, tingling in the fingers may occur. Raynaud’s syndrome occurs when there is a temporary decrease in blood flow to the surface tissue of the feet and hands. This can cause a tingling sensation or numbness in the fingers.
Tingling fingers may not always be the direct result of physical discomfort. It could be the result of some mental health disorders. Frequent panic or anxiety attacks can limit the amount of oxygen reaching the extremities. When a person experiences anxiety or suffers a panic attack, breathing becomes shallow as the heart rate increases. This can decrease blood flow in the body and limit the amount of blood reaching the fingers.
Carpal tunnel syndrome can also cause tingling in your fingers and hands. The carpal tunnel is located in the wrist area where the median nerve enters the hand. A nerve called the median nerve contributes to sensation and movement on the side of the hand where the thumb is. When the nerve becomes damaged or distressed, swelling can occur and may cause a tingling sensation in the fingers, especially the thumb, middle finger, and part of the ring finger.
There are also various diseases that can affect the nervous system and cause tingling in the fingers. Uncontrolled diabetes can cause damage to the blood vessels that supply oxygen to some nerves in the body. Nerve damage occurs when blood glucose levels are high for long periods of time. This can mean several years of nerve damage if blood sugar levels are out of control. Lyme disease is another disease that can cause damage to the nervous system and cause tingling in the fingers, even though it doesn’t affect the nervous system until its later stages.
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