In general, a tingling sensation in the hands can arise after spending long hours at a computer keyboard, typing on a cell phone, even lifting weights or staying in one position for long periods of time.
Tingling, specifically, are abnormal sensations that can occur anywhere in the body, but are most often felt in the fingers, hands, feet, arms or legs, according to the Medline Plus health portal.
However, some of the most common causes are compression of nerves in the hands, circulatory problems, inflammatory processes, alcohol abuse, as well as serious diseases such as diabetes, stroke, multiple sclerosis, or heart attack. health portal, your health.
It should be noted that the hands, arms and feet are parts of the body that have a large number of nerve endings, Which allows for more delicate movements to sense objects and changes in temperature.
because of this reason, Any change, no matter how small, can affect these nerves, causing a tingling sensation. or numbness.
“The sensation of tingling in the hands or the sensation of a sleeping limb is known as paresthesia, and is a frequent reason for consultation,” explains Dr. Santiago Rodríguez, specialist in the Internal Medicine Service of the Virgen del Rocio Hospital ( Seville).
due to tingling or paresthesia
Guyon’s canal syndrome
“In this case, normally at the level of the elbow, an ulnar nerve becomes entrapped,” Dr. Rodriguez describes.
It usually appears with these other symptoms in addition to a feeling of numbness in the fingers:
- When hypothyroidism is not treated properly, it can damage the nerves that carry information between the brain and the rest of the body.
- Thus, in addition to hair loss, weight gain, or a persistent feeling of coldness, hypothyroidism can also cause tingling in various parts of the body, including the hands and arms.
- People who suffer from this disease are at a higher risk of developing nerve damage (peripheral nervous system) that affects sensation in the extremities, especially when they do not have good glycemic control.
- Diabetic neuropathy, for example, is one of the most frequent disorders associated with diabetes: it can affect up to 50% of patients after 20 years of disease development.
carpal tunnel syndrome
The carpal tunnel is a channel that runs from the palm of the hand to the bones of the wrist. The median nerve and tendons that allow the fingers to flex pass through it.
“Carpal tunnel syndrome occurs when the median nerve becomes trapped at the level of the wrist,” explains Dr. Rodriguez.
In addition to a tingling sensation in the fingers of the hand, it usually also causes these symptoms:
- Weakness and difficulty in making certain movements or lifting objects.
- Pain in the wrist and arm, which may worsen at night.
- Between each vertebra of the spine is a disc that protects them, prevents friction between them and acts as a shock absorber.
- When the nucleus pulposus of this disc comes out due to an injury or wear and tear, it is called a herniated disc.
- Depending on which vertebra the hernia occurs, it causes one type of symptom or another. And in the case of tingling in the hands, “it can be caused by a herniated disc at the level of the cervix,” explains Dr. Rodriguez.