Sciatica: leg pain that starts from the back

A cough in the driver's seat should be a nothing. With sciatica it is a test you did not mean to take. The pressure of the cough, or of a sneeze, or of sitting through a single traffic light, sends pain or tingling from the buttock past the knee and into the calf or the foot. It is usually one leg. The back may hurt, or the back may be a minor character while the leg runs the plot. Standing and walking a short distance sometimes eases it. Sitting to tie a shoe brings it back. People curl onto one side at night because the other position lets the leg buzz. That is the symptom this page means by sciatica: leg pain that starts from the back, not a brand of treatment and not a city to search.

The word is used loosely. Thigh pain from a hip, a hamstring strain, a diabetic nerve problem, and a blood clot can all be called sciatica by a friend and still be something else. The exam is what decides whether a lumbar nerve root is the source.

Bowel, bladder, and a leg that is getting weaker

There is an urgent version, and it should be heard before any talk of stretches or tables. If you cannot urinate, you leak urine or stool without control, or the skin between your legs and around the anus goes numb, the nerve roots that serve those functions may be compressed. Go to an emergency department. Do not book a clinic slot for later in the week. Do not try one more night of positioning to see if the numbness is "just the sciatica acting up." Pair that with weakness in both legs, or with trouble walking that is new and obvious, and the urgency is the same.

One leg that is clearly weaker than it was a day ago is not a footnote either. A foot that slaps, a knee that buckles because the muscle will not hold, or a calf you can no longer rise onto needs prompt medical assessment. Painful sciatica with stable strength is a different timeline from sciatica that is taking strength away. The second one gets referred, and if the loss is fast it gets referred immediately.

Leg swelling, redness, and calf pain after a period of immobility can be a clot. A clot is not sciatica, and treating it as a back problem is dangerous. Chest pain or sudden shortness of breath with a leg symptom is an emergency. Fever and a back so tender that you cannot be examined comfortably raises infection. Those are the filters. Once they are clear, a chiropractic office can do the neurologic exam this symptom requires.

What the symptom is, anatomically

The sciatic nerve is the large nerve formed from lumbar and sacral roots. It leaves the pelvis and runs down the back of the thigh, and its branches continue past the knee into the lower leg and foot. "Sciatica" in common speech means pain along that path. In the clinic it usually means a lumbar nerve root is irritated, often by a disc herniation, sometimes by narrowing where the root exits. MedlinePlus describes sciatica as pain that radiates along the sciatic nerve and points to a herniated disk as a frequent cause. Its herniated disk page and its back pain page are the companions: one for the disc as a structure, one for the much larger world of back pain that never enters the leg.

Because the roots supply specific muscles and strips of skin, the exam can often guess the level before any image does. A weak ankle pulling the foot up, numbness on the top of the foot, and a change in one reflex is a different root from a weak calf and numbness on the sole. You will be asked to walk on heels and toes, to resist specific pushes, and to describe exactly where the tingling stops. A nerve stretch, raising the leg or a variation of it, may reproduce the familiar line of pain. A positive test supports a root. It does not, alone, decide on surgery or on a machine.

Images come after the exam when the exam needs them. An MRI that shows a bulge on the side that does not hurt, or a bulge in a person whose leg pain is actually a hip, is a famous way to get the wrong operation. Matching the scan to the strength test and to the strip of skin that tingles is the whole art. Disc vocabulary, so the report does not outrun the person, is on bulging and herniated discs.

If the pain can be pulled back toward the spine

Some people notice that a particular movement, often repeated extension or a carefully chosen flexion, pulls the pain out of the foot and calf and up toward the buttock or the back. Clinicians call that centralization. When it happens, it is useful: the direction that centralizes becomes the direction you practice, and the direction that sends pain farther down the leg gets paused. When it does not happen, you have learned something too. Not every sciatica centralizes, and the absence is not a failure or a ticket to surgery. It means that particular strategy is not your strategy.

This is not a branded exercise system sold in advance of the exam. It is a response the exam looks for. If a direction clearly worsens weakness or sends new numbness into the saddle area, you stop and the visit changes category. Direction-specific movement is for a stable root, done in a dose you can repeat later the same day without being flattened.

Decompression is a conversation after the exam, not before

The office has a computer-driven spinal decompression table. People with leg pain ask about it early, which is understandable and still the wrong order. The neurologic exam comes first. The match between symptoms and any images comes with it. Only then is there a sensible talk about whether decompression belongs. The limits of that talk, including what a table cannot promise, are on is non-surgical spinal decompression worth it. A low back ache that never passes the knee is a different problem and is written up on lower back pain. Arm pain from a neck root can feel philosophically similar and is anatomically somewhere else: pinched nerve in the neck.

An adjustment, if one is offered, has to survive the same order. A joint that is stiff can be treated when doing so does not ignore a root that is losing power. The safety questions people are right to ask live on is chiropractic safe. Nothing on this page calls an adjustment risk-free, and nothing here claims it shrinks a herniation on a schedule.

What you can expect the visit to decide

The chiropractic care page and the technology page tell you what this practice offers in general. Sciatica care is narrower than the full menu. The decision at the end of an honest visit is one of a few sentences. The leg pain looks like a stable root irritation, and the plan is activity, a direction that helps if one was found, and in-office care only where the findings support it. Or the leg is getting weaker, or bladder and bowel are involved, and the plan is an urgent medical referral. Or the leg pain was never a root, and the hip, the peripheral nerve, or a clot workup is the real next step.

Dr. Richter's decompression certification is relevant only in the first of those sentences, and only after the exam. Dr. Choi's joint work is relevant when a stiff segment is part of the finding and the nerve is stable. Neither chiropractor is a reason to stay in the building when the emergency signs are present. The Bureau of Labor Statistics notes that chiropractors are licensed after a doctoral professional degree. License and degree do not expand into bowel and bladder emergencies.

Track two things while you wait for care or while a conservative plan is underway: how far down the leg the pain reaches, and whether strength is changing. Pain moving out of the foot and up toward the back is often a good direction. Strength moving the wrong way is not, even if the pain is slightly less. Bring that observation in words. MedlinePlus is clear that sciatica is a pattern with a cause worth finding. Finding it, and refusing to treat a different disease under sciatica's name, is the whole task.