Why do your hands go numb?
Numbness of the hands can be caused by several factors. Causes of numbness are both harmless and caused by serious diseases. In any case, with numbness in the absence of visible reasons, it is better to be examined in a hospital. Let's try to understand why hands are numb.
Numb hands: reasons
Conditionally, the causes of hand numbness can be divided into two groups:
- Numbness of hands due to clamped nerve
- Numbness of hands due to non-transmitted nerve
Numbness of the hands caused by impaired blood supply
In the squeezed nerve blood circulation is disturbed. Thus, the nerve endings lose their energy and stop working.
How can the nerve be transmitted:
- weight, lying down arm (the reason why numb hands at night)
- heavy bag or backpack straps (the reason why the right hand or the left hand is numb)
- an uncomfortable position at work requiring hands to be above the heart line
- tight clothing (the reason why the left arm or the right hand is numb)
These reasons are temporary and do not cause severe harm to the body.These reasons include the cold season. In cold weather, the arteries narrow and the arms go numb. Let's talk about the more significant causes of hand numbness.
When osteochondrosis intervertebral discs are deformed and squeeze blood vessels.
Swelling of tissues
Tissue swelling can be caused by factors such as:
- tunnel syndrome (usually this syndrome is affected by people who are regularly engaged in monotonous and hard work)
- heart failure (the blood concentration decreases and the water contained in the blood goes to the tissue)
- renal failure (pressure in the kidneys drops and fluid retains in the body)
- pregnancy pathology
There are reasons more serious than previous ones.
Numbness of hands with unstressed nerve
In the nerve and limb, lack of oxygen or glucose can occur due to several reasons:
- hard work requiring all the energy
- circulatory failure (blood clots, etc.)
- post convulsive condition
Numbness of the hands occurs in the absence of the full work of the brain due to:
- hyperventilation (except for numb hands, numbness of the lips occurs)
- circulatory disorders of the brain (extremely dangerous situation, there is a high risk of stroke)
- a microstroke has occurred (in this case it is urgent to consult a doctor)
When diabetes mellitus in the blood is the connection of excess glucose with proteins, this leads to disruption of the activity of blood vessels.
Trauma or neuralgia of the brachial plexus and Raynaud's syndrome are often causes of numbness in the hands. However, these diagnoses can only be made by a doctor.
Chronic numbness of the hands
In most cases, chronic numbness is a symptom of a particular disease. If this is ignored, then we can expect serious complications and the emergence of new problems. A neurologist deals with such issues and should immediately sign up. To determine the sensitivity of the nerves, the doctor will do a neurological test.
Some cases require a blood test:
- on the level of the hormone thyroxine (with hypothyroidism)
- on the amount of sugar in the blood (diabetes)
- for blood levels of sex hormones (during menopause in women)
Moreover, it is necessary to determine the level of calcium, magnesium, potassium, sodium, vitamin B6 and B12 in the patient's body. If an injury or arthritis is suspected, x-rays are prescribed. Due to myelography, the displacement of the spinal disc or pinched nerve is determined, and with the help of MRI I diagnose a tumor.