Right-sided low back pain: common causes

One-sided low back pain is common, and in most cases the cause is mechanical: muscles, ligaments, spinal joints, or an irritated nerve. Even so, the right side of the low back sits close to organs such as the kidney, so not every pain in that area comes from the spine.

It helps to think in three broad groups:

• Muscle or joint: strain, overload, or a sudden movement.
• Nerve: irritation or compression of a nerve root, as in sciatica or a disc herniation.
• Visceral: the pain starts in an internal organ and is felt in the back.

Each group has different signs. Recognizing them does not replace an exam, but it helps you decide how soon to seek care and from whom.

The muscles and ligaments of the low back can be overloaded by lifting, twisting forcefully, or sitting for hours without changing position. This pain is usually localized, dull or pulling, and changes with movement and position.

Signs that point toward a muscle or joint source:

• Stiffness on waking or after sitting for a long time.
• Discomfort that increases with certain movements or effort and eases with relative rest, local heat, or gentle stretching.
• Pain that stays in the back, with no tingling or sensation running down the leg.

Many of these episodes improve within days or a few weeks with moderate activity. If the pain keeps coming back, limits your activities, or does not ease, an evaluation helps identify what is keeping it going.

A disc herniation or protrusion, or narrowing of the space where nerves exit the spine, can irritate a lumbar nerve root. The pain is then often sharper, stabbing, or electric, and it may travel through the buttock and down the leg on the same side; this is known as sciatica.

Signs that suggest a nerve component:

• Tingling, numbness, or an electric sensation in the leg.
• Weakness in the leg or foot.
• Pain that worsens with coughing, sneezing, straining, or prolonged sitting.

These symptoms call for a neurological exam. If weakness is getting worse, numbness appears in the genital or anal area, or bladder or bowel control changes, do not wait for an appointment: it is an emergency.

Less often, right-sided low back pain comes from an internal organ. The best-known causes involve the kidney, such as a kidney stone or an infection. Other possibilities include appendicitis, which often starts around the navel and moves to the lower right abdomen, and, in women, gynecologic causes or pregnancy. The gallbladder and liver usually hurt higher up, in the upper abdomen or under the ribs, although the pain can sometimes be felt in the back.

This kind of pain tends to behave differently from mechanical pain:

• It is deep and constant, or comes in waves, and does not change much when you move or shift position.
• It comes with fever, chills, nausea, or vomiting.
• There is burning on urination, blood in the urine, or a change in its color.
• There is abdominal pain, or you could be pregnant.

If your pain matches this description, seek medical care before a spine evaluation; if it is severe, go to an emergency room. Chiropractic addresses musculoskeletal problems and is not the route for investigating an internal organ.

The visit reviews when the pain started, what makes it worse or better, and whether there are leg symptoms. The exam includes orthopedic and neurological tests, and imaging is reviewed if you bring it. That determines whether the case fits conservative care or whether referral to another specialist makes more sense.

When the cause is mechanical, the plan may combine chiropractic adjustment, non-surgical spinal decompression in selected cases of disc-related nerve compression, physical therapy, therapeutic exercise, and guidance on posture and load. Response varies from person to person; the number of sessions and the goals are adjusted at follow-up. Conservative care does not replace a surgical indication when one exists.

• Pain or stiffness that limits work, sleep, or daily activity.
• Symptoms into the buttock or leg, or numbness.
• Episodes that do not improve with brief rest.
• Recent imaging you want reviewed in the visit.

If there is fever, burning on urination, blood in the urine, or severe pain that comes in waves, seek medical care first.

Do not book here for loss of bladder or bowel control, numbness in the genital or anal area, leg weakness that is getting worse, or pain after a major injury. That is an emergency.