Numbness and tingling in hands and feet
Encyclopedia Symptoms / / May 25, 2016
Alternative names: loss of sensation in the extremities;paresthesia.
Numbness and tingling - abnormal sensations that can occur anywhere in the body, but most often they are felt in the fingers, hands or feet.
Causes of numbness and tingling in hands and feet
There are many possible causes numbness and tingling:
- sitting or standing in the same position for a long time;
- injured or damaged nerve (neck injury can cause the patient to feel numbness in his hands anywhere; trauma to the lower back can cause numbness or tingling of the back of the leg);
- pressure on spinal nerves - for example, from a herniated disc;
- pressure on peripheral nerve from increased vascular tumor, scar tissue or infection;
- herpes zoster (shingles);
- violation of the blood supply to certain areas of the body - for example, atherosclerosis, frostbite, or inflammation of the blood vessels (vasculitis);
- abnormal levels of calcium, potassium or sodium in the body;
- a lack of vitamin B12 or other vitamins;
- the use of certain medications;
- nerve damage due to exposure to lead, alcohol, tobacco, or chemotherapeutic agents;
- radiation therapy;
- animal bites;
- insect bites, ticks, spiders, etc .;
- toxins from seafood;
- toxins from spoiled food.
Numbness and tingling can be caused by other diseases, including:
- carpal tunnel syndrome (pressure on wrist nerves);
- multiple sclerosis;
- transient ischemic attack (TIA), sometimes called a "mini-stroke";
- inflammation of the thyroid gland;
- Raynaud's phenomenon (Raynaud's disease), ie, a narrowing of the blood vessels - usually in the arms and legs.
Diagnosis and treatment
physician must find the cause of numbness or tingling, and heal the sick from it.Treatment of these symptoms can stop them and not let them increase.For example, if a patient has carpal tunnel syndrome or low back pain, his doctor may recommend certain exercises it.
If a patient has diabetes, his doctor can discuss with them ways to control blood sugar levels.
At low levels of vitamins the patient is likely to be recommended vitamin supplements.
Medications that cause numbness or tingling may be canceled or replaced by others.It is strongly recommended not to change or stop taking any of the drugs or take large doses of any vitamins or supplements without consulting your doctor.
As the numbness can lead to a decrease in sensation, it is more likely that the patient may accidentally injure numb arm or leg and does not notice it.We strongly recommend to make sure to protect the body numb the area from cuts, bumps, bruises, burns or other injuries.
recommend that the patient go to the hospital or call a doctor house - especially if:
- the patient has weakness or he is unable to move (it has paralysis of the arms, legs, or both, and the other at the same time), along with their numbnessor tingling;
- numbness or tingling arose only after a head injury, neck or back;
- the patient can not control the movement of the arm or leg, or he has lost control over the work of the bladder or bowel;
- the patient has lost consciousness, at least for a short while;
- patient slurred speech, changes in the ability to see, difficulty walking, or weakness.
encourage the patient to see a doctor, if he: - numbness or tingling have no obvious cause
(for example, when falling asleep);
- there is a pain in the neck, forearm, fingers;
- urinating more often was;
- numbness or tingling in the legs is enhanced when the patient is;
- have a rash;
- have dizziness, muscle spasm, or other unusual symptoms.
Your doctor will need to examine the medical history and perform a diagnostic examination, carefully checking the patient's nervous system.
doctor may ask the patient the following questions about his medical history and symptoms:
- which part (some parts of) his body have numbness or tingling: trunk, arms or legs, fingers or toes;
- which side of his body was numb (and there is a tingling);
- which are areas of the body: for example, thigh, calf or the entire leg, hand, fingers, wrist or forearm;
- Does numbness or tingling in the face of the patient: the area around his eyes, cheeks, around the mouth;numb and tingle one side or both sides of his face;
- whether that part of his body, which had numbness or tingling, changes in color;it is cold or warm;
- whether or not the patient, and other unpleasant sensations;
- Do not ignore your feelings the patient, if he sees them;
- how long the patient had numbness or tingling;
- as numbness or tingling began;
- which increases or tingling - for example, exercising or standing on their feet for long periods of time;
- whether the patient's other symptoms.
doctor may also ask the patient questions to determine his risk of developing stroke, thyroid disease or diabetes, as well as questions about his work habits and taking medications.
following tests may be assigned:
- complete blood count;
- analysis to determine the level of electrolytes in the blood (body measuring chemicals and minerals) and liver function tests;
- analysis on thyroid function;
- measurement of vitamin B;
- screening for heavy metals or toxins;
- analysis on sedimentation rate and measurement of C-reactive protein.
Research can be such:
- angiogram (a test that uses x-rays and a special dye to see the blood vessels);
- CT and angiography of the head (brain vessels);
- CT of the spine;
- MRI of the head;
- MRI of the spine;
- ultrasound of the neck vessels to determine the risk of a TIA (transient ischemic attack) or stroke;
- ultrasound vessels;
- X-rays of the affected area;
- electromyography and nerve conduction studies - measuring muscle response to nerve stimulation;
- a lumbar puncture (spinal or lumbar, puncture) to rule out disorders of the central nervous system;
- cold stimulation - can be made to detect the phenomenon of Raynaud's.