Back pain is one of the most common reasons people seek medical help or miss work. Back pain is a leading cause of disability worldwide.

Fortunately, measures can help prevent or relieve most back pain episodes, especially for people younger than age 60. If prevention fails, simple home treatment and using the body correctly often will heal the back within a few weeks. Surgery is rarely needed to treat back pain.

Back pain can range from a muscle aching to a shooting, burning or stabbing sensation. Also, the pain can radiate down a leg. Bending, twisting, lifting, standing or walking can make it worse.

When to see a doctor

Most back pain gradually improves with home treatment and self-care, usually within a few weeks. Contact your health care provider for back pain that:

• Lasts longer than a few weeks.
• Is severe and doesn't improve with rest.
• Spreads down one or both legs, especially if the pain goes below the knee.
• Causes weakness, numbness, or tingling in one or both legs.
• Is paired with unexplained weight loss.

In rare cases, back pain can signal a serious medical problem. Seek immediate care for back pain that:

• Causes new bowel or bladder problems.
• Is accompanied by a fever.
• Follows a fall, blow to the back or other injury.

Back pain often develops without a cause that shows up in a test or imaging study. Conditions commonly linked to back pain include:

• Muscle or ligament strain. Repeated heavy lifting or a sudden awkward movement can strain back muscles and spinal ligaments. For people in poor physical condition, constant strain on the back can cause painful muscle spasms.
• Bulging or ruptured disks. Disks act as cushions between the bones in the spine. The soft material inside a disk can bulge or rupture and press on a nerve. However, a bulging or ruptured disk might not cause back pain. Disk disease is often found on spine X-rays, CT scans or MRIs done for another reason.
• Arthritis. Osteoarthritis can affect the lower back. In some cases, arthritis in the spine can lead to a narrowing of the space around the spinal cord, a condition called spinal stenosis.
• Osteoporosis. The spine's vertebrae can develop painful breaks if the bones become porous and brittle.
• Ankylosing spondylitis, also called axial spondyloarthritis. This inflammatory disease can cause some of the bones in the spine to fuse. This makes the spine less flexible.

Anyone can develop back pain, even children and teens. These factors can increase the risk of developing back pain:

• Age. Back pain is more common with age, starting around age 30 or 40.
• Lack of exercise. Weak, unused muscles in the back and abdomen might lead to back pain.
• Excess weight. Excess body weight puts extra stress on the back.
• Diseases. Some types of arthritis and cancer can contribute to back pain.
• Improper lifting. Using the back instead of the legs can lead to back pain.
• Psychological conditions. People prone to depression and anxiety appear to have a greater risk of back pain. Stress can cause muscle tension, which can contribute to back pain.
• Smoking. Smokers have increased rates of back pain. This may occur because smoking causes coughing, which can lead to herniated disks. Smoking also can decrease blood flow to the spine and increase the risk of osteoporosis.

Improving one's physical condition and learning and practicing how to use the body might help prevent back pain.

To keep the back healthy and strong:

• Exercise. Regular low-impact aerobic activities — those that don't strain or jolt the back — can increase strength and endurance in the back and allow the muscles to work better. Walking, bicycling and swimming are good choices. Talk with your health care provider about which activities to try.
• Build muscle strength and flexibility. Abdominal and back muscle exercises, which strengthen the core, help condition these muscles so that they work together to support the back.
• Maintain a healthy weight. Being overweight strains back muscles.
• Quit smoking. Smoking increases the risk of low back pain. The risk increases with the number of cigarettes smoked per day, so quitting should help reduce this risk.

Avoid movements that twist or strain the back. To use the body properly:

• Stand smart. Don't slouch. Maintain a neutral pelvic position. When standing for long periods, place one foot on a low footstool to take some of the load off the lower back. Alternate feet. Good posture can reduce the stress on back muscles.
• Sit smart. Choose a seat with good lower back support, armrests and a swivel base. Placing a pillow or rolled towel in the small of the back can maintain its normal curve. Keep knees and hips level. Change position frequently, at least every half-hour.
• Lift smart. Avoid heavy lifting, if possible. If you must lift something heavy, let your legs do the work. Keep your back straight — no twisting — and bend only at the knees. Hold the load close to your body. Find a lifting partner if the object is heavy or awkward.

Buyer beware

Because back pain is common, many products promise prevention or relief. But there's no good evidence that special shoes, shoe inserts, back supports or specially designed furniture can help.

In addition, there doesn't appear to be one type of mattress that's best for people with back pain. It's probably a matter of what feels most comfortable.

Your health care provider will examine your back and assess your ability to sit, stand, walk and lift your legs. Your provider might also ask you to rate your pain on a scale of zero to 10 and talk to you about how your pain affects your daily activities.

These assessments help determine where the pain comes from, how much you can move before pain forces you to stop and whether you have muscle spasms. They also can help rule out more-serious causes of back pain.

One or more of these tests might help pinpoint the cause of the back pain:

• X-ray. These images show arthritis or broken bones. These images alone won't show problems with the spinal cord, muscles, nerves or disks.
• MRI or CT scans. These scans generate images that can reveal herniated disks or problems with bones, muscles, tissue, tendons, nerves, ligaments and blood vessels.
• Blood tests. These can help determine whether an infection or other condition might be causing pain.
• Nerve studies. Electromyography (EMG) measures the electrical impulses produced by the nerves and how the muscles respond to them. This test can confirm pressure on the nerves caused by herniated disks or narrowing of the spinal canal (spinal stenosis).

Most back pain gets better within a month of home treatment, especially for people younger than age 60. However, for many, the pain lasts several months.

Pain relievers and the use of heat might be all that's needed. Bed rest isn't recommended.

Continue your activities as much as you can with back pain. Try light activity, such as walking. Stop activity that increases pain, but don't avoid activity out of fear of pain. If home treatments aren't working after several weeks, your health care provider might recommend stronger medications or other therapies.

Medications

Medications depend on the type of back pain. They might include:

• Pain relievers. Nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen (Advil, Motrin IB, others) or naproxen sodium (Aleve), might help. Take these medications only as directed. Overuse can cause serious side effects. If pain relievers you can buy without a prescription don't help, your health care provider might suggest prescription NSAIDs.
• Muscle relaxants. If mild to moderate back pain doesn't improve with pain relievers, a muscle relaxant might help. Muscle relaxants can cause dizziness and sleepiness.
• Topical pain relievers. These products, including creams, salves, ointments and patches, deliver pain-relieving substances through the skin.
• Narcotics. Drugs containing opioids, such as oxycodone or hydrocodone, may be used for a short time with close medical supervision.
• Antidepressants. Some types of antidepressants — particularly duloxetine (Cymbalta) and tricyclic antidepressants, such as amitriptyline — have been shown to relieve chronic back pain.

Physical therapy

A physical therapist can teach exercises to increase flexibility, strengthen back and abdominal muscles, and improve posture. Regular use of these techniques can help keep pain from returning. Physical therapists also will provide education about how to modify movements during an episode of back pain to avoid flaring pain symptoms while continuing to be active.

Surgical and other procedures

Procedures used to treat back pain may include:

• Cortisone injections. If other measures don't relieve pain that radiates down the leg, an injection of cortisone plus a numbing medication into the space around the spinal cord and nerve roots might help. A cortisone injection helps decrease inflammation around the nerve roots, but the pain relief usually lasts only a month or two.
• Radiofrequency ablation. In this procedure, a fine needle is inserted through skin near the area causing the pain. Radio waves are passed through the needle to damage the nearby nerves. Damaging the nerves interferes with pain signals to the brain.
• Implanted nerve stimulators. Devices implanted under the skin can deliver electrical impulses to certain nerves to block pain signals.
• Surgery. Surgery to create more space within the spine is sometimes helpful for people who have increasing muscle weakness or back pain that goes down a leg. These problems can be related to herniated disks or other conditions that narrow the openings within the spine.

A number of alternative treatments might ease back pain. Always discuss the benefits and risks with your health care provider before starting a new alternative therapy.

• Chiropractic care. A chiropractor manipulates the spine to ease pain.
• Acupuncture. A practitioner of acupuncture inserts thin sterilized needles into the skin at specific points on the body. A growing body of scientific evidence indicates that acupuncture can be helpful in treating back pain.
• Transcutaneous electrical nerve stimulation, also known as TENS. A battery-powered device placed on the skin delivers electrical impulses to the painful area. Studies have shown mixed results as to TENS' effectiveness.
• Massage. For back pain caused by tense or overworked muscles, massage might help.
• Yoga. There are several types of yoga, a broad discipline that involves practicing specific postures or poses, breathing exercises, and relaxation techniques. Yoga can stretch and strengthen muscles and improve posture. People with back pain might need to modify some poses if they aggravate symptoms.

If your back pain persists despite home treatment, see your health care provider. Here's some information to help you get ready for your appointment.

What you can do

Make a list of:

• Key personal information, including mental or emotional stressors in your life.
• Your symptoms, and when they began.
• All medications, vitamins and other supplements you take, including doses.
• Questions to ask your provider.

Take a family member or friend along, if possible, to help you remember the information you receive.

For back pain, questions to ask your provider include:

• What is the most likely cause of my back pain?
• Do I need tests?
• What treatment approach do you recommend?
• If you're recommending medications, what are the possible side effects?
• I have other medical conditions. How can I best manage them together?
• How long will I need treatment?
• What self-care measures should I try?
• What can I do to prevent back pain from coming back?

What to expect from your doctor

Your doctor is likely to ask you questions, including:

• Have you ever injured your back?
• Is the pain constant?
• Does the pain affect your ability to function? How?
• Do you have other signs or symptoms besides back pain?
• Do you do heavy physical work?
• Do you exercise regularly? What types of activities do you do?
• How often do you feel depressed or anxious?
• Do you sleep well?
• What treatments or self-care measures have you tried so far? Has anything helped?