Tingling and numbness in the limbs
The feeling of fine needles in an arm or leg is familiar to everyone: you have sat in one position too long, the blood supply to the nerve was briefly…
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Medicines commonly prescribed for Tingling and numbness in the limbs
For informational purposes only. Always consult a doctor before taking any medication.
Dosage form: INJECTABLE, 1 mg/mlActive substance: hydroxocobalaminManufacturer: Laboratorios Basi Industria Farmaceutica S.A.Prescription requiredDosage form: INJECTABLE, 10 mg hydroxocobalamin/2 mlActive substance: hydroxocobalaminManufacturer: Aristo Pharma Iberia S.L.Prescription required
The feeling of fine needles in an arm or leg is familiar to everyone: you have sat in one position too long, the blood supply to the nerve was briefly interrupted, and as it returns that characteristic tingling appears. The medical term is paraesthesia. An episode like that lasts minutes and leaves no trace. It needs looking into when the tingling keeps coming back, persists, or comes with weakness.
When it is harmless
Tingling is almost certainly unrelated to illness if it:
- appeared after sitting still for a long time or sleeping on your arm;
- cleared within a few minutes of changing position;
- affected only one limb and does not recur;
- comes with no weakness and no disturbance of speech or walking.
When emergency help is needed
Call the emergency services immediately if numbness or tingling has come on suddenly and along with it:
- the face has dropped on one side or the corner of the mouth has fallen;
- an arm or leg has weakened, particularly on one side of the body;
- speech or the understanding of speech has been affected;
- vision has deteriorated abruptly, or balance has gone;
- a severe headache has developed.
These are signs of a stroke, and here time decides the outcome.
Help is just as urgent if numbness has spread to the genital area and inner thighs, control of bladder or bowel has been lost, or both legs have suddenly weakened — this can indicate compression of the nerves in the spine.
When to book a routine appointment
- tingling and numbness recur regularly or persist for weeks;
- they are symmetrical — both feet, both hands;
- weakness, clumsiness or unsteadiness on walking has joined them;
- numbness wakes you at night;
- you have started to feel temperature or pain less well in your feet;
- the symptom appeared after starting a new medicine or during chemotherapy.
Possible causes
- Diabetes. The most common cause of persistent symmetrical numbness in the feet. Sometimes this is how the condition is first detected;
- a compressed nerve — a disc problem in the lower back radiates down the back of the leg; in the neck, into the arm;
- entrapment syndromes — carpal tunnel syndrome produces night-time numbness of the fingers;
- vitamin B12 deficiency and shortages of other B vitamins;
- thyroid disease;
- hyperventilation with anxiety — tingling around the mouth and in the fingers with rapid breathing;
- Raynaud's phenomenon — fingers turn white or blue in the cold, then redden and tingle;
- multiple sclerosis — numbness in different parts of the body at different times;
- alcohol taken regularly;
- medicines and toxins — chemotherapy, some antibiotics and HIV drugs, heavy metal poisoning.
What happens at the appointment
The clinician will establish exactly where and when the symptom occurs, what brings it on and what relieves it, and will check sensation, muscle strength and reflexes. Blood tests are usual: glucose and HbA1c, vitamin B12, thyroid hormones and a full blood count. Depending on the picture, nerve conduction studies, an MRI of the spine or brain, and a neurology referral follow.
It helps to arrive with observations: which fingers are affected, at what time of day, what makes a difference. A sketch on a sheet of paper saves a great deal of appointment time.
Treatment
The cause is what gets treated: bringing diabetes under control, replacing a B12 deficiency, correcting thyroid function; for carpal tunnel syndrome, a night splint, physiotherapy and sometimes injections or surgery. Medicines that reduce nerve pain are chosen separately, since ordinary painkillers work poorly against it. In diabetic neuropathy daily foot checks are essential: reduced sensation means an injury or a rub can go unnoticed.
Online consultation
In an online appointment a doctor can go through the nature and distribution of the symptom, judge whether any features call for urgent in-person care, determine which tests and investigations are needed and advise which specialist to see.
This article is for general information and does not replace a consultation with a doctor.
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Reviewed on Aug 1, 2026
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