What is numbness?
Numbness is loss of feeling in part of your body. You may have less feeling than usual or no feeling at all. Numbness can be a sign of a problem with your brain or your spinal cord. With numbness, you may not be able to:
Feel a light touch
Tell hot from cold
Know the position of the numb part of your body
Along with numbness, you may also have:
Tingling or a pins-and-needles feeling
Paralysis (trouble moving part of your body)
Numbness can cause problems with balance and coordination. It can affect your ability to walk or drive.
When should I see a doctor for numbness?
See a doctor right away if you have numbness with any of these warning signs:
The numbness came on suddenly (within minutes or hours)
You also have weakness in part of your body that came on quickly (within hours or days)
The numbness or weakness quickly spread up or down your body, involving more and more parts of your body
An entire leg or arm is numb
Your face and torso are numb
You have numbness or weakness and trouble moving, talking, or seeing
Your thighs, buttocks, or genital area are numb and you are incontinent (lose control of your pee or poop)
The numbness is on both sides of your body below a specific point, such as below the middle of your chest
If you have numbness without these warning signs, call your doctor. Your doctor can decide how quickly to see you based on your symptoms.
What causes numbness?
When you touch something with your hand, the nerves in your hand send messages to your brain. The messages allow you to feel what you touch. Similar nerves connect all different parts of your body to your brain. Numbness happens when something goes wrong with the nerve path on which those messages travel. Many different disorders and medicines can block or put pressure on this path, such as:
Infection, such as Lyme disease Lyme Disease Lyme disease is a certain disease you get from being bitten by infected ticks. It's called Lyme disease because it was first discovered in Lyme, Connecticut. A type of tick called the deer tick... read more or HIV Human Immunodeficiency Virus (HIV) Infection and AIDS The human immunodeficiency virus (HIV) is a type of virus called a retrovirus. It causes AIDS (acquired immunodeficiency syndrome), which is life-threatening. HIV is called an immunodeficiency... read more
Not having enough vitamin B12 in your body
Osteoarthritis Osteoarthritis (OA) Arthritis is a group of diseases that makes your joints hurt, swell up, and turn red. There are many different types of arthritis. Osteoarthritis is the most common type of arthritis. In osteoarthritis... read more that presses on the nerves coming out of the spinal cord
Pressure on a nerve from repeated motions or sitting in one position too long
Injury to the brain, spinal cord or nerves
Some people get numbness and tingling in their hands and around their mouth when they feel anxious and breathe too fast (hyperventilation). This isn't dangerous.
What will happen at my doctor visit?
Doctors will ask questions about your numbness and do an exam.
Doctors may do tests depending on what they think the cause may be, such as:
Nerve conduction test (a nerve test that sends small electric shocks through a part of your body—this tells doctors how well a nerve conducts electricity)
Electromyography (a muscle test that uses small needles to record the electrical activity of a muscle)
How do doctors treat numbness?
Doctors treat the problem that's causing your numbness.
Doctors may suggest ways to help ease symptoms and prevent other problems:
If your foot is numb, wear shoes and socks that fit well and check for pebbles or other things in your shoes before putting them on
Check your numb area for sores, redness, or swelling
If your hand is numb, be careful when touching things that may be hot or sharp
If you have problems walking, getting physical therapy Physical Therapy (PT) Physical therapy, a component of rehabilitation, involves exercising and manipulating the body with an emphasis on the back, upper arms, and legs. It can improve joint and muscle function, helping... read more or using a cane or walker may help you walk safely and prevent falls
Talk with your doctor about whether it's safe for you to drive.