Every person is familiar with the feeling of numbness in the hands, when the loss of sensitivity in the area of the hands is accompanied by a slight burning or tingling sensation. This phenomenon is explained by a disruption of normal blood flow to the distal parts of the upper extremities, caused by compression of blood vessels or nerve fibers. In most cases, such changes are temporary phenomena. Sensitivity is restored immediately after changing body position, during movement and similar actions.
What is hand numbness and its causes?
Many people are familiar with the unpleasant feeling of tingling, “crawling on the skin,” as well as pain, decreased sensitivity and deterioration of mobility in the limb. All of these manifestations characterize numbness, which can occur in the arms, legs and other areas of the body. It is associated with impaired blood circulation in the tissues or compression of the nerves.
Along with numbness in the hands, the following symptoms may also occur:
- burning sensation;
- muscle spasms;
- tingling sensation;
- pain in hands, fingers;
- feeling of itching;
- tingling and numbness that gets worse when you move your fingers;
- increased sensitivity to touch;
- pain in the cervical spine.
Why do my hands go numb?
If your arms and legs go numb on one side, then most likely the cause is a stroke, transient ischemic attack, brain tumor or multiple sclerosis.
With a stroke, there are other symptoms: facial asymmetry, speech impairment, numbness of the limbs, muscle weakness. If you experience any of the above symptoms, you should immediately call an ambulance.
In a transient ischemic attack (TIA), a blood clot blocks a blood vessel in the brain for several minutes. This happens if the lumen is too narrow due to cholesterol plaques (atherosclerosis). Attacks occur regularly and are manifested by numbness of the arm, leg and/or face (mainly on one side), weakness, dizziness, double vision, and slow speech. The symptom complex depends on which vessel is affected.
Statistically, a third of people with a TIA will have a stroke, so such patients should definitely see a doctor to reduce their risks.
With multiple sclerosis, numbness of the face, limbs, and individual parts of the body is often the first symptom. Numbness can vary in strength, but sometimes it makes it significantly difficult to move an arm, leg, etc. There are no medications that can help cope with this condition. Despite the fact that the symptom may go away on its own, you should definitely seek help from a specialist as soon as possible.
Causes of numbness in the left hand:
- Cardiac ischemia. In addition to numbness in the left arm, there is discomfort in the chest. If after taking nitroglycerin or stopping the physical activity that caused the symptoms, these manifestations disappear, then it is angina pectoris. In addition to numbness of the left arm, it is accompanied by chest pain in the heart area, panic, pale skin, nausea, shortness of breath, and cold sweat.
- Myocardial infarction. Sometimes hand numbness is the only sign of this acute cardiovascular disaster. During an attack, the patient experiences intense pain and a feeling of constriction in the chest, shortness of breath, and interruptions in the functioning of the heart. The skin becomes covered with cold sweat. Along with numbness in the hand, a person experiences pain radiating to the lower jaw, stomach, and the area between the shoulder blades.
- Atherosclerosis. Due to atherosclerotic damage to the blood vessels, decreased strength and numbness in the arm may occur. Symptoms intensify when raising the limb upward.
- Stroke. Numbness in the left hand may indicate damage to the right hemisphere of the brain. In this case, the upper and lower limbs on the left side become numb, vision and speech are impaired. Along with numbness in the hand, a stroke can cause a complete loss of sensation in the hand. Other symptoms of cerebral hemorrhage include weakness in the limbs, loss of coordination, severe headache, blurred vision, nausea and vomiting, and irritation from bright lights and sounds.
- Vegetative-vascular, or neurocirculatory dystonia. This is a complex of autonomic disorders that is associated with disorders of nervous regulation. In addition to numbness of the left hand, it may be accompanied by headaches, insomnia, pressure fluctuations, arrhythmia, and panic attacks.
- Raynaud's disease. The pathology is accompanied by paroxysmal circulatory disorders in the arteries of the extremities. Along with the numbness of the hand, its rapid freezing is felt. In the cold and with excitement, a person’s fingers may turn blue. As Raynaud's disease progresses, not only the hands become numb, but also the legs, chin, nose, and ears.
- Vitamin B12 deficiency. This connection is extremely important for the normal functioning of nerve tissue. With its deficiency, a person not only experiences numbness in the hand, but also suffers from dry mouth and pale skin.
- Osteochondrosis (usually cervical and thoracic). First, the fingers go numb, then weakness develops in the upper limb, and the grip strength of the hand decreases. Sometimes pain is felt along the outside of the shoulder and forearm.
- Overstrain of muscles in the cervical-collar region. Pianists and PC operators suffer from hand numbness due to prolonged maintenance of the same position. The problem lies in the overstrain of the muscles, which compress the nerve fibers responsible for the sensitivity of the limbs.
- Insufficient blood circulation. The upper limb becomes numb due to impaired blood flow due to damage to the walls of blood vessels, for example, in diabetes mellitus.
- Stress and psycho-emotional overload can cause hand numbness.
- Carpal tunnel syndrome. When the median nerve passing through the wrist is compressed, the left hand may become numb. This problem is familiar to people of certain professions (programmers, musicians). Nerve compression can also occur in women during pregnancy due to swelling, as well as in patients after surgery, in obese people.
When should you see a doctor?
In case of numbness, you should consult a doctor immediately if:
- numbness in the genital area and anus is accompanied by back pain and uncontrollable urination/defecation;
- the person’s consciousness is impaired to the point of loss of consciousness;
- numbness significantly complicates normal life;
- numbness appeared after a head, neck or back injury;
- numbness is accompanied by slow speech, vision problems, difficulty walking, or weakness;
- the entire limb became numb;
- numbness is accompanied by paralysis or weakness - it is impossible to move the limb;
- numbness is accompanied by a sudden and severe headache;
- significant numbness occurred suddenly.
If you have numbness, you should consult a doctor if:
- it is impossible to explain the cause of numbness;
- there is pain in the neck, forearm or fingers;
- the urge to urinate occurs more frequently;
- numbness in the legs increases when walking;
- a rash appeared;
- not only numbness occurred, but also dizziness, muscle spasms or other unusual symptoms;
- the numb area gradually increases in size;
- numbness is felt in the limbs on both sides.
How is the diagnosis made?
Usually, with numbness, a neurological examination and history taking will provide the doctor with a lot of information, and only then can a preliminary diagnosis be made. But for a final decision, it is often necessary to do an x-ray, magnetic resonance imaging, electromyography or blood tests.
How to get rid of unpleasant feelings?
Of course, there is no universal way to get rid of numbness, regardless of the cause of this condition. You need to act based on what exactly triggered the numbness. For example, a set of exercises often helps with carpal tunnel syndrome. If numbness is associated with diabetes, then you can only more carefully monitor your blood sugar levels. Vitamin B12 deficiency is corrected with therapeutic doses of appropriate medications.
Why can't you ignore numbness? The fact is that a person can damage a numb part of the body and not notice it. Therefore, even if there are no additional serious symptoms indicating a stroke or other serious condition, it is still worth contacting a neurologist with numbness.
Numbness in the right hand may have the following causes:
- impaired blood flow, pinched nerve due to incorrect position of the limb (for example, during sleep);
- staying in an uncomfortable position for a long time (may be due to the nature of the work, for example, carpal tunnel syndrome);
- frequent carrying of bags, suitcases and other heavy objects;
- long exposure to frost or in a cold room;
- long-term muscle tension of the upper limb.
Causes
Numbness can be a sign of a wide range of diseases or conditions that involve restricted blood flow or nerve damage.
Temporary numbness can be caused by any activity that puts prolonged pressure on the nerve(s), such as sitting cross-legged or cycling long distances. Numbness can also occur due to moderate to severe orthopedic or vascular pathology, as well as conditions and diseases that lead to damage to the nervous system. In some cases, numbness is a symptom of a life-threatening condition that requires emergency medical attention.
Cardiovascular causes of numbness
Numbness can be caused by a lack of blood flow to a certain area due to conditions such as:
- Arteriovenous malformations
- Buerger's disease
- Deep vein thrombosis (a blood clot in the legs can break off, which can lead to pulmonary embolism in the lungs, heart attack, stroke)
- Frostbite
- Diseases of peripheral arteries (vascular atherosclerosis, in which narrowing of the arterial bed occurs).
- Raynaud's syndrome, in which persistent spasm of peripheral vessels occurs and blood circulation in the distal extremities is impaired. Vasospasm is usually triggered by cold or sometimes stress.
Orthopedic causes of numbness
Numbness may also occur due to minor or serious orthopedic conditions that cause nerve damage:
- Whiplash neck injury
- Bone fractures
- Carpal tunnel syndrome
- Degenerative diseases of the intervertebral disc
- Herniated disc
- Compression pinched nerve
- Osteoporosis
Neurological causes of numbness
Numbness due to nerve compression or nerve damage may be due to conditions such as:
- Alcoholism
- Brain tumors
- Diabetic neuropathy
- Encephalitis
- Heavy metal poisoning such as lead poisoning
- Hypothyroidism
- Multiple sclerosis
- Peripheral neuropathy
- Spinal cord injury or tumor
- Stroke
- Systemic lupus erythematosus
- Myelitis
- Myelopathy
- Vitamin B12 deficiency
Numbness during pregnancy
Pregnant women face many changes in the body, and numbness is one of them. Some pregnant women develop carpal tunnel syndrome and it is believed to be due to water retention in the body during pregnancy.
As the fetus develops, fluid accumulates in the body, tissues swell, including in the wrist area, compression of the median nerve occurs and carpal tunnel syndrome develops. Symptoms of carpal tunnel syndrome are more pronounced in the morning hours, as fluid accumulates in the body at night. As a rule, carpal tunnel syndrome in pregnant women heals on its own after delivery.
Numbness in children
There are many reasons why children may experience numbness in different parts of the body. Eating disorders, lack of vitamins and minerals can cause numbness in the lower extremities, this is especially typical for a deficiency of B vitamins. Sports injuries can also cause numbness. Therefore, in childhood, parents need to pay attention to children’s complaints of numbness, which lasts more than a few minutes and may be a sign of damage to ligaments, tendons or bone fractures. Often, anxiety in childhood can be a source of numbness in the lips and face.
Why does hand numbness occur?
When a patient says that his upper limbs are numb, he may mean:
- a tingling feeling that causes discomfort;
- sensation of “goosebumps” under the skin;
- decreased sensitivity of the skin.
Numbness of the hands does not always indicate pathology. It may be the result of wearing too tight clothes and jewelry that compress blood vessels and nerves.
The most common causes of numbness in the hands:
- Uncomfortable body position, monotonous mechanical work, disrupting blood flow. After changing the position of the limb, the unpleasant sensations disappear.
- Carpal tunnel syndrome (usually affects the working hand due to prolonged monotonous work).
- Atherosclerosis. Accompanied by tingling and numbness of the hands, in the future a decrease in their muscle strength is likely.
- Osteochondrosis of the cervical spine (numbness, usually symmetrical, may intensify after physical activity).
- Diabetic neuropathy (usually both hands go numb).
- Intervertebral hernia in the cervical region (numbness is associated with compression of the spinal nerve roots).
- Ischemic stroke of the brain (threatens numbness and paralysis of the arm).
- Multiple sclerosis (if part of the postcentral gyrus of the brain is affected, the limbs may go numb).
- Thoracic outlet syndrome (compression of nerve trunks and blood vessels in the area of the upper chest opening).
- Brachial plexitis (numbness of the arm occurs due to inflammation of the brachial plexus).
- Damage to peripheral nerves due to alcoholism (alcoholic polyneuropathy).
- Brain tumor (the formation can compress the motor and sensory neurons responsible for the innervation of the upper extremities).
- Raynaud's disease (a disorder of the innervation of small arterioles, more common in women, manifested by numbness and pain in the extremities).
- Rheumatoid arthritis (inflammation and deformation of joints leads to compression of nerve fibers) and others.
Main services of Dr. Zavalishin’s clinic:
- consultation with a neurosurgeon
- treatment of spinal hernia
- brain surgery
- spine surgery
My legs are going numb
If one lower limb or both goes numb, this may be a sign of cauda equina syndrome, herniated disc, or multiple sclerosis.
In cauda equina syndrome, all 18 nerves located in the lumbar spine are compressed. This may occur due to a hernia, inflammation, tumor, or stenosis (narrowing) of the spinal canal. The result is not only numbness in both legs, but also lower back pain, problems with urination, defecation, and erectile dysfunction.
Radiculitis associated with a hernia occurs due to the fact that the nucleus pulposus, which is located in the intervertebral disc, breaks out and compresses nearby nerve endings. With a hernia, not only numbness occurs, but also back pain and weakness in the limbs. Symptoms usually go away within 6–8 weeks. If this does not happen, the doctor may prescribe more aggressive treatment, including surgery.
With sciatica, most often only one leg goes numb. Sciatica, or lumbosacral radiculitis, is compression of the sciatic nerve, which also causes pain in the lower back. The cause of sciatica can be a herniated disc, spinal stenosis, piriformis syndrome (compression of the sciatic and gluteal nerves by the piriformis muscle), bone fractures and pelvic injuries, tumors. Usually, along with numbness, a person feels aching pain, tingling or burning. Treatment depends on the cause of sciatica.
Diagnosis of the causes of hand numbness. How to identify?
At the appointment, the doctor examines and palpates the patient’s limb and asks the following questions:
- Where exactly is the numbness felt?
- When did the unpleasant tingling sensation and decreased sensitivity first appear?
- How long does numbness in a limb bother you?
- What actions and movements aggravate symptoms?
- Are there any other complaints, such as burning, itching, tingling, pain?
- How do your arms, hands, and fingers feel—cold or warm?
The main task of the doctor is to determine the causes of hand numbness. It is necessary to exclude systematic mechanical compression of blood vessels, as well as to determine household and industrial factors that could cause disturbances.
Numbness may be a harmless symptom, but it may also hide serious problems - myocardial ischemia, stroke, spinal problems, diabetes mellitus, amyotrophic lateral sclerosis, etc. In this case, the doctor issues a referral to doctors of relevant specializations (cardiologist, endocrinologist, neuropathologist, etc.).
The main emphasis in identifying the causes of numbness is on detecting signs of osteochondrosis. For this, the patient is referred for magnetic resonance imaging, radiography, computed tomography, and electromyography. The purpose of imaging studies for arm numbness is to determine the height of the intervertebral disc, detect osteophytes, and clarify the presence of protrusion or intervertebral herniation.
Diagnostics
Clinical symptoms are of great importance for making a diagnosis. Therefore, the doctor carefully asks the patient about when the disease began, how it manifests itself, and what helps.
Table 2. Differential diagnosis of numbness and tingling in the extremities. Possible reasons
Affected limbs | Localization, features of numbness | Presumable disease |
Upper | Sudden lesion of one arm. | Intervertebral disc herniation, spondylosis, osteochondrosis, plexitis, tunnel syndrome |
Combined with impaired active movements. | Polyneuropathy, plexitis, tunnel syndrome. | |
Symmetry. | Intoxication, infection. | |
Blueness of fingers. | Raynaud's disease. | |
Affects all fingers except the little finger | Carpal tunnel syndrome. | |
Paresthesia of the little finger | Ulnar nerve neuritis, ischemic heart disease | |
Lower | The pathological process affects the legs and lower back. | Osteochondrosis, lumbar hernia, atherosclerosis, pinched sciatic nerve, cauda equina syndrome. |
Combined with impaired active movements. | Arthritis, multiple sclerosis, carpal tunnel syndrome, polyneuropathy, stroke. | |
Damage to the lower leg and foot in combination with pain and muscle tension. | Thrombophlebitis, neuropathy, varicose veins. | |
Paresthesia of the toes. | Arthritis of the thumb, radiculoneuritis, neoplasm, polyneuropathy. | |
Top and bottom | Numbness of the left or right limbs | There may be several reasons: stroke, brain tumor, multiple sclerosis, transient ischemic attack. |
Principles of treating hand numbness
The primary task of the doctor is to identify the root cause of this symptom. For this purpose, radiography, myelography, MRI, blood tests, etc. can be performed.
Depending on the nature of the disease that caused numbness in the hands, treatment methods are selected. First of all, the underlying disease is treated. Drug treatment is supplemented by:
- physiotherapy;
- physical therapy;
- reflexology;
- massage;
- diet therapy;
- lifestyle correction.
Treatment
Table 3. Numbness of the extremities: causes and symptoms, treatment
Cause | Symptoms, examples of pathologies | Treatment |
Circulatory disorders | Ischemia, arterial hypertension, thromboembolism. | Treatment of the underlying disease. |
Orthopedic problems | Disc herniation, osteochondrosis. | Conservative or surgical therapy to eliminate compression of the nerve roots. |
Nerve compression | Tunnel syndrome, polyneuropathy. | Elimination of tissue edema, restoration of metabolic processes. |
Preventing numbness in the hands
In order to prevent discomfort in the upper extremities, it is recommended:
- exercise regularly (discuss the type and nature of exercise with your doctor in advance);
- maintain the health of blood vessels, joints and the body as a whole (give up bad habits, eat rationally);
- dress according to the season, keep your hands warm;
- take breaks every 40 minutes if your profession involves working on a PC or performing monotonous hand movements.
How to deal with numb hands at home
The situation cannot be ignored if a person is haunted by a feeling of discomfort every night. You can cope with the problem at home, but after mandatory consultation with a specialist in order to exclude diseases dangerous to humans.
If no means help restore restful sleep, neither changing the pillow, nor daytime contrast procedures, then you need to look deeper for the cause.
Folk remedies will help alleviate your condition. Contrast baths are quite
, when hands are alternately lowered first into hot and then into cold water.
After completing the procedure, an ointment containing turpentine is rubbed onto the hands and special gloves are put on to retain heat.
Hands may become numb due to weakened blood vessels; hot water, which should be drunk in small sips on an empty stomach, will help to cope with this problem.
Treatment with folk remedies
The following recipes help with numb hands:
- as a compress or therapeutic bath, use a mixture of 2 liters of milk, 600 g of salt and 50 g of honey, heated to 60? C;
- apply an infusion of wild rosemary with apple cider vinegar (1:3) 3 times a day;
- infusion of garlic (several cloves) in vodka (400 ml) taken orally, 3-5 drops dissolved in water;
- for 1 liter of vegetable oil - 100 g of ground black pepper, cook for 30–40 minutes, rub the cooled product into the skin of the affected limb.
Spinal problems
Various diseases can manifest as numbness in the hands. Periodic numbness of the limbs, dizziness, and headaches should cause a person to contact a neurologist or osteopath. The cause of leakage can be both osteochondrosis and intervertebral hernia. Osteochondrosis is the collective name for a large complex of diseases of the spine, when a disturbance occurs in the metabolic processes of cartilage and bone tissue.
The progression of the disease leads to the destruction of the vertebrae, the spinal nerves begin to be compressed, and numbness and discomfort occur.
People who lead a passive lifestyle and work constantly at the computer are at risk. This could be office workers or schoolchildren. Few people pay attention to their posture and regularly get up to warm up; as a result, with prolonged exercise of the same type, a spasm occurs in the cervical region, and as a result, numbness of the hands both at night and during the day.
Treatment of hand numbness in specialized hospitals
Department of Neurosurgery, City Clinical Hospital named after. A.K. Yeramishantseva sees patients with complaints of numbness in their hands. Here, progressive methods of conservative and surgical treatment of diseases manifested by such symptoms are used. Advanced technical equipment and extensive professional experience of the medical staff guarantee good treatment results. Telephone.
Neurosurgeon Evgeniy Evgenievich Zavalishin treats diseases that cause numbness in the hands. Sign up for a consultation by calling 8 (499) 940-04-30.
Prevention of hand numbness
An examination of the body did not reveal any serious diseases, then eliminating numbness will not be a difficult task. You can start with morning exercises, which will affect all limbs and all muscle groups. Morning physical activity will help put your heart into a working rhythm and get your blood circulating.
- Physiotherapy will not be superfluous. The procedure will increase blood circulation. Electrophoresis gives good results.
- Therapeutic exercises that will strengthen muscles, tendons and joints.
- Manual therapy. Massaging the numb area will enhance blood supply to weakened areas.
Not everyone perceives numbness in the hands at night as a signal that it’s time to get examined. Many tolerate this condition, believing that these are manifestations of the norm. Indeed, very often numbness in the hands occurs due to improper sleep and incorrectly selected bedding and, as a rule, this problem is quickly and easily solved. However, if the numbness is systematic and a person experiences it every night, and it does not go away for a long time or both hands are affected, then it is unlikely that it will be possible to do without consulting a doctor.
Diagnosis of the problem
The patient's appointment begins with a questioning, which is of no small importance in diagnostic terms. A thorough medical history allows the doctor to suspect the causes of numbness in the hands. After the interview, the doctor begins to examine the patient. During its implementation, it is important to evaluate skin color, its temperature, tendon reflexes, and skin reflexes.
Based on the data received, the doctor refers the patient for further examination, which may include:
- Donating blood for general and biochemical analysis.
- Submission of urine for general analysis.
- Ultrasound of internal organs.
- X-ray of the skull and spine. The study is prescribed if there is a suspicion of an intervertebral hernia or other disorders of the musculoskeletal system.
- Vascular angiography using contrast.
- CT. This study provides maximum information about the condition of the organs. It can be used to detect hematomas, aneurysms, blood clots, circulatory disorders, etc.
- MRI. It is prescribed when the doctor suspects vascular compression.
- Electroneuromyography. This study allows us to identify innervation disorders. Diagnostics are carried out using special electrodes.
After the patient has completed the necessary tests, the doctor will be able to give him an opinion on his state of health and prescribe appropriate treatment.