Repetitive activities like typing or working on an assembly line can cause the tissues around the median nerve to swell up and put pressure on this nerve. The pressure can cause numbness along with tingling, pain, and weakness in the affected hand. If the condition persists, it can cause permanent nerve damage. Sometimes surgery is necessary to relieve the pressure. You need vitamin B12 to keep your nerves healthy. Severe B12 deficiency can cause numbness in your hands and feet on both sides of your body.
Potassium and magnesium deficiency may also cause numbness. Nerve damage neuropathy can be a side effect of several different medications, especially those that treat cancer. It can affect both your hands and feet. Discs are the soft cushions that separate the bones vertebrae of your spine.
A disruption in the structure of your spinal column may cause movement of the disk. This is called a herniated, or slipped, disc. Swelling around the nerve, a damaged disc, or degeneration of the bones of your spine can put pressure on and irritate the nerves of your spine.
In addition to numbness, a slipped disc can cause weakness or pain in your arm or leg. The symptoms occur when your blood vessels narrow, reducing the amount of blood reaching your hands and feet. The decreased blood flow makes your fingers and toes become numb, cold, pale, and painful. These symptoms typically appear from cold exposure or stress. The ulnar nerve runs from your neck to your hand on the pinky side. The nerve can become compressed or overstretched at the inner aspect of your elbow.
This can happen after prolonged positions put pressure on your elbow or due to swelling from repetitive movement. Doctors refer to this condition as cubital tunnel syndrome. Cubital tunnel syndrome can cause symptoms such as hand numbness and tingling, especially in your ring and pinky fingers. A person may also experience forearm pain and weakness in their hand, especially when they bend their elbow. Cervical spondylosis is a type of arthritis that affects the discs in your neck.
The damaged vertebrae can press on nearby nerves, causing numbness in your hands, arms, and fingers. Most people with cervical spondylosis do not have any symptoms. Others may feel pain and stiffness in their neck. Lupus is an autoimmune disease. This means your body attacks your own organs and tissues.
It causes inflammation in many organs and tissues, including your:. Symptoms of lupus come and go. Which symptoms you have depends on which parts of your body are affected. Pressure from inflammation can damage nerves and lead to numbness or tingling in your hands. Other common symptoms include:. Ganglion cysts are fluid-filled growths. Numbness can occur along a single nerve in one hand, or it may occur symmetrically in both hands.
Hand numbness can be caused by damage, irritation, or compression of one of the nerves or a branch of one of the nerves in your arm and wrist. Diseases affecting the peripheral nerves, such as diabetes, also can cause numbness, although with diabetes, similar symptoms usually occur first in your feet. Uncommonly, numbness may be caused by problems in your brain or spinal cord, although in such cases arm or hand weakness or loss of function also occurs.
Numbness alone isn't usually associated with potentially life-threatening disorders, such as strokes or tumors. Zeng, L. An integrated perspective on diabetic, alcoholic, and drug-induced neuropathy, etiology, and treatment in the US. Journal of pain research, 10, — Levin, M. Merck Manual Consumer Version. Roth Bettlach, C. Preferences in sleep position correlate with nighttime paresthesias in healthy people without carpal tunnel syndrome.
Hand New York, N. Working hand syndrome: A new definition of non-classified polyneuropathy condition. Medicine, 96 25 , e Caliandro, P. Treatment for ulnar neuropathy at the elbow. Latef, T. Injury of the radial nerve in the arm: A review. Cureus, 10 2 , e Wipperman, J.
Carpal tunnel syndrome: Diagnosis and management. American Family Physician, 94 12 , — Patel, J. Characteristics of sleep disturbance in patients with carpal tunnel syndrome. Miao, Q. Effectiveness of percutaneous neuromuscular electrical stimulation for neck pain relief in patients with cervical spondylosis.
Medicine, 97 26 , e Masocatto, N. Thoracic outlet syndrome: A narrative review. Revista do Colegio Brasileiro de Cirurgioes, 46 5 , e Sanders, R. Diagnosis of thoracic outlet syndrome. Journal of Vascular Surgery, 46 3 , — American Diabetes Association Diagnosis and classification of diabetes mellitus.
Some drugs can cause nerve damage or neuropathy, usually affecting the peripheral nerves and causing numbness and tingling in the extremities, such as the hands and feet. The medication may have a toxic effect on the myelin sheath or the axon of the nerves, causing damage and interfering with nerve signals. If an external event, such as a car crash, cuts, stretches, or compresses a nerve to the right hand, the person is likely to feel numbness. A person who has experienced physical trauma should see a doctor for an examination so they can understand the extent of the injury.
People with diabetes live with high blood sugar and control it with insulin injections. However, over time, high levels of glucose in the blood can cause diabetic neuropathy or nerve damage. Usually, the nerve damage affects the peripheral nerves in the feet and sometimes the hands, causing tingling and numbness. A person should ask their doctor if they have diabetes and they are also experiencing the following symptoms:. The medical name for tennis elbow is lateral epicondylitis.
Inflammation and micro-tearing in the tendons around the elbow cause this overuse condition. The tears create a painful burning sensation on the outside of the elbow, and the inflammation can cause numbness in the hand. It is called tennis elbow because it is common in athletes who play racket sports.
However, it is still a common injury for many other activities. Treatment is usually a combination of rest, physical therapy , and medication for pain and inflammation. Here, the pain and inflammation are concentrated on the inside of the elbow.
A healthcare provider may ask the person to strengthen their wrist by squeezing a tennis ball and doing wrist curls. Low vitamin B12 can cause nerve problems resulting in tingling or numb hands and feet. Other symptoms of a vitamin B12 deficiency include:. A person usually gets vitamin B12 from their diet. It is in many foods, including beef liver, clams, fish, meat, poultry, eggs, and milk.
Vegetarians and vegans might have trouble finding a source of vitamin B12, so a multivitamin can help. Low potassium , or hypokalemia, can also cause issues with muscle contraction, such as numbness in the hands.
Many foods are sources of potassium, especially fruits and vegetables. Therefore, a person usually does not need to take a supplement. The spasming can cause numbness, pain, tingling, and throbbing in the hands. The skin will turn a blotchy red and white pattern.
However, a person still might want to check in with a doctor in case of an underlying issue. Sometimes degeneration or an acute injury can cause a cervical disk in the neck to slip or herniate. The herniation may cause a narrowing of the spinal canal, putting pressure on the nerve root. This can cause numbness, weakness, and tingling in the hand and arm.
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