Numb hands: a warning sign that should be monitored, know in time before dangerous disease occurs

It is believed that many people are familiar with hand numbness that often occurs temporarily and can improve on its own when changing posture, which is mostly caused by poor blood circulation. However, when hand numbness begins to occur more frequently, becomes more severe, or is accompanied by other abnormal symptoms, that may be a warning sign of dangerous diseases that should be diagnosed and treated promptly to reduce the risk of complications and help you return to normal life with confidence again

Key Takeaways

• Hand numbness can occur from many causes, whether numbness from nerve compression or numbness from abnormalities of the nervous system, which may have factors from behaviors and certain diseases

• Risk groups should be especially cautious, such as those who use their hands repetitively for long periods, pregnant women, patients with chronic diseases, and those with vitamin B deficiency

• Hand numbness may occur temporarily and is not dangerous, but if the numbness is severe or accompanied by other abnormal symptoms, a doctor should be consulted to find the cause and receive treatment promptly

• Hand numbness can be treated with oral medication, injections, physical therapy, and surgery; the choice of treatment depends on the severity and the true cause of the numbness

What causes hand numbness?

Hand numbness may occur from many causes, including:

Numbness caused by nerve compression

The nerves that supply the hands help create sensation and control muscle movement. When these nerves are repeatedly compressed for a long time, the nerves lack blood and oxygen supply, causing the nerves to begin to function abnormally. This results in pain, numbness, weakness, and loss of sensation in the area supplied by those nerves. Diseases or conditions that may cause numbness from nerve compression include:

• Carpal Tunnel Syndrome, caused by inflammation of the wrist tendon sheath, swelling and thickening, leading to compression of nearby nerves; commonly found in those who use their wrists heavily for long periods

• Cubital Tunnel Syndrome, where the ulnar nerve passing through the elbow to the little finger and half of the ring finger is compressed at the elbow; commonly found in those who frequently keep the elbow bent or rest on the elbow

• Herniated Disc, caused by spinal nerves passing through the spine being compressed by intervertebral discs, resulting in numbness of the hands or legs depending on the area supplied by those nerves

• Spinal Stenosis, an abnormality that causes narrowing of the spinal canal, leading to compression of the spinal cord nerves

Numbness caused by nervous system abnormalities

The brain and spinal cord are important parts of the central nervous system, responsible for receiving information, processing it, and sending commands to various organs through nerves. If abnormalities occur, it may cause impaired control of organ function or loss of sensation and command in that area, resulting in numbness or other abnormal symptoms. Diseases or conditions that may cause numbness from nervous system abnormalities include:

• Stroke, which can result from either blockage or rupture of cerebral blood vessels, causing interruption of blood flow to the brain and damage to brain cells. If the abnormality occurs in the area controlling hand movement, it may cause hand numbness or weakness

• Peripheral Neuropathy, caused by abnormal or damaged peripheral nerves, with many factors such as genetics, diabetes, kidney disease, immune system diseases, infections, vitamin deficiency, including side effects of certain medications

• Muscle weakness caused by degeneration of nerve cells or abnormal immune system function that cannot control muscle movement normally, resulting in hand numbness and weakness

Numbness caused by other causes

In addition to nerve compression and neurological diseases, there are other causes that can lead to hand numbness, for example:

• Poor blood circulation, resulting in insufficient blood supply to nerves and muscles

• Arthritis, inflammation of joints and surrounding tissues may compress nearby nerves

Risk groups for hand numbness, awareness leads to prevention

Hand numbness may occur in the following groups of people:

• Office workers who often remain in the same posture for long periods, such as typing or answering phone calls

• Housewives and cooks who regularly use their hands for cleaning or cooking

• Occupations that require heavy and repetitive hand use, such as artists, hairdressers, and work related to crafting or handicrafts

• Sports involving gripping equipment, such as tennis, badminton, baseball

• Those with nutritional deficiencies, especially vitamin B

• Pregnant women

• Patients with chronic diseases such as diabetes, liver disease, chronic kidney disease, rheumatoid arthritis

Hand numbness symptoms that require urgent medical attention

Hand numbness may be a general symptom that resolves by simply changing posture, but when the numbness is severe or accompanied by the following abnormalities, a doctor should be consulted promptly for diagnosis:

• Hand numbness that persists for days or weeks

• Numbness accompanied by pain

• Numbness accompanied by weakness and inability to control movement normally

• Numbness accompanied by abnormally cold or hot hands

• Numbness accompanied by other symptoms such as loss of balance, dizziness, slurred speech, loss of vision

Treatment of hand numbness

Treatment depends on the cause of the symptoms, with the following approaches:

• Medication, such as anti-inflammatory drugs for tendons and nerves, muscle relaxants

• Physical therapy to strengthen muscles, reduce nerve compression, and reduce contracture or adhesions between tendons, muscles, and nerves

• Steroid injections to reduce inflammation and pain of tissues compressing the nerves

• Surgery, in cases where other treatments are ineffective or symptoms worsen with associated weakness, in nerve compression conditions that can be treated with surgery

Prevention of hand numbness

Hand numbness can be prevented by starting with behavior modification and self-care as follows:

• Do not overuse the hands; if necessary, take breaks and use supportive devices

• Do not remain in the same posture for long periods; change positions to prevent tendons and muscles from tightening and compressing nerves

• Be careful to avoid severe impact injuries that may damage nerves

• Eat a balanced diet, especially vitamin B which helps nourish the nervous system

• Avoid smoking and alcohol consumption that may damage the nervous system in the long term

• Exercise, strengthen muscles, and perform physical therapy to increase strength and reduce injury

If you have hand numbness, do not ignore it; get examined and treated at Praram 9 Hospital

Although hand numbness is a common symptom that can occur frequently and may resolve on its own, if it is severe or occurs more often, it may be a warning sign of dangerous disease that requires serious and prompt treatment to prevent progression that may affect daily life in the long term

The Orthopedic Center, Praram 9 Hospital, pays attention to every risk symptom, not overlooking even minor symptoms, because timely diagnosis and care are key to preventing serious disease and ensuring the most effective treatment

For more information

Facebook : Praram 9 Hospital International & Expats

Line : @Praram9Hospital

Tel. 1270

Frequently asked questions about hand numbness

Why does lying on the arm for a long time cause hand numbness?

Lying on the arm for a long time causes poor blood circulation and also compresses the nerves in the arm, leading to hand numbness. When posture is changed and the numbness disappears on its own, it means these symptoms are not serious because the compression is temporary

Do smoking and alcohol consumption affect the occurrence of hand numbness?

Smoking and alcohol consumption may increase the risk of hand numbness because nicotine in cigarettes causes blood vessels to constrict, resulting in poor blood circulation, and alcohol has a depressant effect on the nervous system, all of which may lead to hand numbness in the long term

References

Numbness in Hands. (2023, August 8). Cleveland Clinic. https://my.clevelandclinic.org/health/symptoms/17824-numbness-in-hands

Mayo Clinic Staff. (2023, June 8). Numbness in hands. Mayo Clinic. https://www.mayoclinic.org/symptoms/numbness-in-hands/basics/causes/sym-20050842

Noe Pagán, C. (2025, March 11). Why Is Your Arm or Hand Numb? WebMD. https://www.webmd.com/a-to-z-guides/arm-hand-numb