numbness risks and benefits for patients

Overview

Numbness is a loss of feeling or a tingling sensation in a part of your body. It happens when nerves are compressed, damaged, or not getting enough blood flow. Numbness is a symptom, not a disease itself.

Yes, most people experience numbness at some point. It becomes more common as you get older.

Numbness can affect anyone, but people with diabetes, vitamin deficiencies, or conditions that press on nerves are at higher risk.

Symptoms

Common symptoms

• Tingling or 'pins and needles' feeling
• Weakness in the affected area
• Burning or cold sensation
• A feeling that the limb is 'asleep' or heavy
• Dropping things or tripping more often

Symptoms in children

• Complaints of a limb feeling 'asleep' after sitting still
• Tingling in hands or feet
• Frequent tripping or difficulty holding small objects

Symptoms in older adults

• Numbness in feet or hands that may affect balance
• Numbness that comes and goes, especially at night
• Weakness that makes it harder to walk or grip

Causes

Main causes

• Prolonged pressure on a nerve, such as sitting or lying in one position too long
• Nerve damage from long-term conditions like diabetes
• Vitamin B12 deficiency
• A compressed nerve in the back or neck, such as a slipped disc
• Migraine
• Multiple sclerosis or other disorders of the brain and spinal cord
• Stroke or a transient ischaemic attack (also called a mini-stroke)

Risk factors

• Diabetes
• Older age
• Sitting or standing in one position for long periods
• Repetitive movements that press on nerves, like using a mouse all day
• Vitamin B12 deficiency
• Heavy alcohol use
• Smoking

When to see a doctor

See a doctor urgently if:

• Numbness that starts suddenly and affects one side of the body
• Numbness with confusion, difficulty speaking, or a severe headache
• Numbness after a fall or injury
• Numbness that is clearly getting worse within a few hours

Book a routine appointment if:

• Numbness that comes and goes for more than a few days
• Tingling that wakes you up at night
• Numbness that is always in the same spot
• If you have diabetes and are concerned about nerve damage

Diagnosis

Your doctor will ask about your symptoms, medical history, and any recent injuries. They will examine your reflexes, strength, and how well you feel touch, pain, and temperature.

Tests that may be done

• Blood tests to check for diabetes, vitamin levels, or thyroid problems
• Nerve conduction studies to measure how well your nerves send signals
• MRI or CT scans to look at your brain and spine
• Lumbar puncture in rare cases to test the fluid around your brain and spinal cord

What to expect at your appointment

Most of these tests are safe and painless. You may feel mild discomfort during nerve conduction studies, but it usually passes quickly. Your doctor will explain each test before it happens and let you know when to expect results.

Treatment

Treatment depends on what is causing the numbness. If it comes from pressure on a nerve, changing posture and moving more often can help. If it is linked to a condition like diabetes or a vitamin shortage, managing that condition is the first step. Starting treatment early gives you the best chance of reducing damage.

Self-care at home

• Take regular breaks from sitting or standing in one position
• Move the affected limb gently to improve blood flow
• Avoid tight shoes or tight wrist bands
• If your hands tingle at night, try a different sleeping position
• Keep your hands and feet warm in cold weather

Medical treatments

Your doctor may recommend physiotherapy, medicines to ease nerve-related discomfort, or supplements if a vitamin deficiency is found. It is important to take any medicine only as prescribed. Occupational therapy can also help you manage daily tasks safely.

When is surgery considered?

In some cases, surgery may be an option to relieve pressure on a nerve, such as in the wrist or spine. This is usually only considered when other treatments have not worked and tests show a specific, treatable cause.

Living with this condition

Living with numbness means taking extra care of the affected areas. Because you may not feel injuries, check your hands, feet, and skin regularly for cuts, burns, or blisters. Keep walkways clear to reduce the risk of tripping.

Lifestyle tips

• Stay active with gentle activities like walking or stretching
• Avoid smoking and limit alcohol, as both can harm nerves
• Manage your blood pressure and blood sugar with your healthcare team
• Take short breaks if you sit for long periods at work

Diet and exercise

A balanced diet with plenty of vitamins, especially B12, supports nerve health. Gentle exercise helps your blood circulate. Always check with your doctor before starting a new exercise routine.

Mental health and emotional wellbeing

Numbness can be worrying and may affect your sleep or mood. It is normal to feel anxious or frustrated. If these feelings are overwhelming or you ever feel unsafe, talk to your doctor or contact a crisis line immediately.

Prevention

You cannot prevent every cause of numbness, but you can reduce your risk by staying active, eating well, avoiding smoking, and taking care of long-term conditions like diabetes. Regular check-ups with your doctor can also help spot problems early.

Screening programmes

If you have diabetes or other risk factors, your doctor may recommend periodic blood tests and nerve checks to catch nerve damage before it becomes serious.

Complications

If left untreated

• Permanent nerve damage that leads to weakness or loss of movement
• Injuries from cuts, burns, or pressure sores that you cannot feel
• A higher risk of falls because you cannot feel the ground well
• Delays in treating serious conditions like stroke or a trapped nerve

Long-term outlook

The outlook for numbness is often good. When the cause is found and treated, many people improve completely. Even if some numbness remains, support and therapy can help you stay active and safe. The earlier you seek help, the better your chances of protecting your nerves.

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