questions to ask before numbness

Overview

Numbness is a loss of feeling in part of your body. It can feel like a 'pins and needles' sensation, or as if the area has fallen asleep. It is not a disease itself, but a symptom that can come from many causes, including pressure on nerves, injury, or conditions like diabetes. This article helps you understand numbness and gives you questions to ask your doctor so you can feel confident in your care.

Yes. Almost everyone has felt brief numbness or tingling when pressure is placed on a nerve, such as when sitting cross-legged. Persistent or recurring numbness is also common, especially in older adults and people with certain medical conditions like diabetes.

Numbness can affect people of all ages, from children to older adults. It happens more often in people with diabetes, nerve injuries, vitamin deficiencies, or who do repetitive movements. Older adults may notice it due to conditions like arthritis or reduced circulation.

Symptoms

Common symptoms

• Tingling or 'pins and needles' sensation
• A feeling that the affected body part is 'asleep' or disconnected
• Burning, prickling, or crawling sensation
• Weakness or clumsiness in the affected area
• Worsening symptoms when you sit or stand in one position for a long time

Symptoms in children

• Children may not be able to describe numbness clearly. They might complain of a 'funny feeling' or that a limb 'isn't working'.
• They may drop objects or stumble more often.
• Frequent numbness in children should be discussed with a pediatrician.

Symptoms in older adults

• Older adults may notice numbness more in their feet, causing balance problems.
• They might not feel pain from a foot injury due to numbness, which is dangerous.
• Numbness can increase fall risk, so it's important to get it checked.

Causes

Main causes

• Pressure on nerves — for example, sitting or sleeping in an awkward position
• Peripheral neuropathy — nerve damage, often from diabetes or alcohol
• Vitamin deficiencies, especially vitamin B12
• Nerve compression conditions, like carpal tunnel syndrome or a slipped disc in the spine
• Injuries that affect nerves directly
• Conditions like multiple sclerosis or migraine in some cases

Risk factors

• Having diabetes or high blood sugar
• A family history of nerve disorders
• Repetitive hand or arm movements, such as typing or using vibrating tools
• Vitamin deficiency, especially B12
• Heavy alcohol use
• Older age
• Kidney or liver disease

When to see a doctor

See a doctor urgently if:

• Seek same-day care if you have sudden numbness that affects your ability to move a limb, or if it develops after an injury.
• Contact your doctor urgently if you have numbness and you also have diabetes, as this could be a sign of complications.
• If you have numbness that comes and goes and you have other symptoms like double vision or severe headache, call your provider.

Book a routine appointment if:

• Make a routine appointment if you have numbness that lasts more than a few days, is in the same place, or is interfering with your daily life.
• Also see a doctor if you have persistent tingling that wakes you at night, or has no obvious cause.

Diagnosis

A doctor will ask about your symptoms, medical history, and what makes the numbness worse or better. They will likely do a physical exam to check your strength, reflexes, and sensation. From there, they may recommend tests to find the cause.

Tests that may be done

• Nerve conduction study — small sensors measure how fast your nerves send signals
• Electromyography (EMG) — checks the health of muscles and the nerves controlling them
• Blood tests — to check for diabetes, vitamin deficiencies, or other conditions
• Imaging scans like MRI or CT — to look for a pinched nerve or problems in the brain or spine
• Lumbar puncture (sometimes called a spinal tap) — if certain conditions are suspected

What to expect at your appointment

During your appointment, you can ask questions such as: What could be causing this numbness? What tests do I need? Should I see a specialist like a neurologist (a brain and nerve doctor)? What should I do if the numbness gets worse? Write down your questions before the visit so you don't forget.

Treatment

Treatment for numbness depends on the cause. If a nerve is being squeezed, physical therapy or splints may help. If the cause is a medical condition, treating that condition often relieves the numbness. The goal is to stop nerve damage and improve your daily comfort.

Self-care at home

• Avoid sitting or lying in positions that put pressure on your nerves
• Take breaks from repetitive hand movements and stretch your hands and arms
• If you have diabetes, manage your blood sugar with your healthcare team's guidance
• Warm baths or gentle massage may help, but check with a doctor if the numbness is recent
• Protect numb areas — check your feet daily for injuries because you might not feel them

Medical treatments

Depending on the cause, a doctor may recommend physical therapy, braces or splints, or medications for nerve pain. Always take any medicine exactly as prescribed by your healthcare provider. In some cases, you may be referred to a specialist such as a neurologist or a physiotherapist for more targeted care.

When is surgery considered?

Surgery is rarely the first step. It may be considered if a nerve is trapped or compressed, for example in severe carpal tunnel syndrome or a herniated disc, and other treatments haven't helped. Your surgeon will explain the risks and benefits in your situation.

Living with this condition

If you have long-term numbness, focus on safety. Use handrails, keep your floors clear, and check your feet and hands for cuts or sores. Wear comfortable shoes and gloves when appropriate. Let your family or coworkers know so they can help if you need it.

Lifestyle tips

• Quit smoking — smoking narrows blood vessels and can worsen nerve damage
• Limit alcohol, which can also damage nerves
• Stay active, but choose activities that don't strain your nerves
• Keep your blood sugar within a healthy range if you have diabetes

Diet and exercise

Eating a balanced diet with enough vitamin B12 (found in eggs, meat, dairy, and fortified cereals) helps keep nerves healthy. Exercise improves circulation and balance. Gentle activities like walking, swimming, or yoga may be helpful. Talk to your doctor before starting a new exercise routine, especially if numbness affects your balance.

Mental health and emotional wellbeing

Living with numbness can be frustrating and worrying, especially if the cause isn't clear. It's normal to feel anxious or down. Talk to your doctor about these feelings — they may suggest counselling or support groups. Your mental health is just as important as your physical health.

Prevention

You can reduce your risk of developing numbness by managing health conditions like diabetes, avoiding heavy alcohol use, and maintaining good posture. But not all causes can be prevented. Catching nerve problems early gives the best chance of treating them successfully.

Vaccines

There are no vaccines that directly prevent numbness. However, staying up to date on vaccines recommended in your country can help prevent infections that might affect nerves.

Screening programmes

Regular check-ups with your doctor may help detect conditions that cause numbness, such as diabetes, vitamin deficiency, or thyroid problems. Ask your doctor if you should be screened based on your age and risk factors.

Complications

If left untreated

• If the cause of numbness is not addressed, nerve damage can become permanent.
• Loss of feeling can lead to falls and injuries.
• You might not notice cuts, burns, or pressure sores on numb areas, which can become infected.
• Weakness and muscle wasting may develop over time.

Long-term outlook

The outlook for numbness depends on its cause. Many people get better once the cause is found and treated — for example, correcting a vitamin deficiency or taking pressure off a nerve. Even when numbness can't be fully cured, treatments can help manage symptoms and prevent further nerve damage. With the right care, most people maintain a good quality of life. Always talk to your doctor for a plan that fits your situation.

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