That pain that shoots from your lower back or buttock and
travels down the back of your leg — sometimes with numbness or tingling
all the way to the foot — is what most people call sciatica. It
can make sitting miserable, standing worse, and sleep nearly impossible.
If you are reading this at 2 a.m. because the pain is keeping you up:
the sleep-position section below is for you, tonight, free. And when you
are ready to fix the problem rather than just survive it, this page
explains what an actual diagnosis of your sciatica looks like —
because “sciatica” is a symptom with several different causes, and the
right treatment depends on which one you have.
At Somalynk in Ixelles, near Place du Luxembourg and the EU quarter,
you are treated by Philippe Tadger — a musculoskeletal physiotherapist
and manual therapist who is also a clinical researcher and statistician.
Care is available in English, French and Spanish.
Trust strip: MSc Orthopaedic Manual Therapy,
University of Zaragoza (honours) · Statistical Editor at Cochrane · PhD
candidate in chronic pain (Vrije Universiteit Brussel) ·
INAMI-conventionné n°5/58395/34/527
👉 Book a consultation
— or jump to: How to sleep with sciatica ·
Warning signs that need a doctor now ·
What’s causing MY sciatica?
What
sciatica actually is — and why it is not a diagnosis
Sciatica is the everyday name for pain along the path of the sciatic
nerve: lower back or buttock, down the back of the thigh, sometimes into
the calf and the bottom of the foot. Alongside pain there may be
numbness or tingling that travels down the back of your
leg, a feeling of the nerve being “trapped” or “stuck”, or
weakness in the leg or foot.
Here is the part the most popular videos skip: sciatica is a
symptom, not a diagnosis. Several different problems can
irritate the nerve or its roots:
- A disc problem (a bulging or herniated disc
pressing on or irritating a nerve root in the lower back) — the most
common mechanism, especially under 50. - Lumbar stenosis (age-related narrowing of the
spaces the nerves pass through) — more common over 60, classically worse
with standing and walking, easier when sitting or leaning forward. - Deep buttock (“piriformis-type”) problems —
irritation of the nerve where it passes through the deep hip
muscles. - Referred pain — pain from a joint or muscle that
travels down the leg and mimics nerve pain without any nerve
actually being compressed. This is common, and it responds to different
treatment.
Why does this matter to you? Because these mechanisms respond to
different — sometimes opposite — movements. An
extension exercise that eases a disc-related sciatica can flare a
stenosis. That is why “the one exercise for sciatica” cannot exist, and
why finding your mechanism comes first.
⚠️ Warning signs — when sciatica is an emergency
Most sciatica, even severe, is not dangerous. But a small number of
cases involve serious nerve compression that needs urgent
medical care, not physiotherapy and not home exercises. Go to
an emergency department (or call 112) the same day if
leg pain comes with any of these:
- Numbness in the saddle area — the parts of you that
would touch a bicycle saddle: inner thighs, genitals, around the
anus. - New bladder or bowel changes — difficulty starting
or controlling urination, loss of bowel control, or not feeling the need
to go. - Progressive weakness in the leg or foot — the foot
slapping or dragging when you walk (“foot drop”), or weakness that is
clearly getting worse over hours or days. - Sciatica in both legs at once with any of the
above.
Together these can signal cauda equina syndrome —
compression of the nerve bundle at the base of the spine. It is rare,
and it is time-critical.
See a doctor promptly (not an emergency, but soon) if you also have:
unexplained weight loss, fever, a history of cancer, or night pain that
never eases in any position. Screening for exactly these signs is the
first thing a serious clinical assessment does — and it is the single
biggest thing missing from every popular sciatica video.
How to sleep with sciatica — tonight
Sleep is the thing sciatica steals first, and no, you are not
imagining that it is worse at night. What consistently helps:
- On your side (painful leg on top), with a firm pillow
between your knees. This keeps the top hip and pelvis from
rolling forward and tugging on the irritated nerve. If there is a gap
between your waist and the mattress, a small rolled towel there can
help. - On your back, with a pillow (or two) under your
knees. Slightly bent knees reduce the pull on the sciatic nerve
and let the lower back rest in a relaxed mid-position. - Avoid sleeping on your stomach. It forces the lower
back into extension and the neck into rotation for hours — most people
with sciatica wake worse from it. - Getting out of bed: roll, don’t crunch. Roll onto
your side, drop your legs off the edge, and push up sideways with your
arms — instead of sitting straight up, which loads the lower back
exactly the way it hates at 7 a.m.
Honest expectation: positioning reduces irritation so you can sleep;
it does not treat the cause. If you have needed these tricks for more
than a couple of weeks, that is the sign to get assessed.
What
you can safely do at home — and what to expect from it
Generous, honest home guidance — with its limits stated plainly:
- Keep moving, gently. Bed rest beyond a day or two
slows recovery. Short, frequent walks at a comfortable pace are one of
the best-tolerated things for most sciatica. - Ease, don’t force. With an irritated nerve, gentle
repeated movement helps; aggressive stretching flares it. Stop well
short of sharp leg pain — a stretch should feel like tension, not
electricity. If an exercise makes the pain travel further down
the leg, that movement is wrong for you right now; pain moving
up toward the back is generally a good sign. - Positions of relief are real — use them. Lying on
your back with lower legs resting on a chair, or lying propped on
elbows, gives many people 10–20 minutes of relief. Use them as a
pain-management tool, not as a cure. - Heat for the muscle guarding, if it comforts you.
It will not change the nerve, but it can calm the muscle spasm around
it. - Common video exercises — figure-4 stretch, gentle nerve
“flossing” — are reasonable if they clearly ease your
symptoms. If they do nothing or worsen the leg pain after two weeks of
honest trying, more of the same is not the answer; assessment is.
Two claims circulating online to be careful with.
You may have seen the idea that pressing along the sciatic nerve of your
other, pain-free leg cures the painful side because the nerves
form a “circuit” — there is no known neurophysiological basis for this.
You may also have seen that a foam roller placed at one exact vertebra
makes sciatica “go away” by taking pressure off the nerve — positional
relief is real, but a disc or nerve-root problem is not cured by one
prop position. Neither idea is dangerous; the danger is the weeks lost
believing the problem is solved.
Which sciatica is YOURS? Why self-diagnosis
fails
The popular videos themselves say it: the right exercise depends on
whether your problem is a disc, stenosis or a deep-buttock issue. Then
they leave you to guess, sometimes with a do-it-yourself
straight-leg-raise “test”. The honest problem: a
self-administered leg raise cannot distinguish true nerve-root
compression from referred pain — and treatment for those two is
different. Clinicians use that test as one piece among many, alongside
reflexes, strength, sensation and movement analysis.
This is exactly what a first consultation at Somalynk is built for.
We never apply an automatic protocol. Instead:
- History and your goals. How it started, what makes
it better and worse, what sitting/standing/walking/night each do to it —
the pattern itself is diagnostic. - Clinical examination. Neurological testing
(strength, reflexes, sensation), neurodynamic tests of the nerve itself,
and a movement exam to find which directions load and which relieve.
If you already have an MRI or X-ray, bring it — we read it, and
then we still make our own functional and movement diagnosis,
because scans show structure, not which movement is producing your pain.
Many pain-free adults have disc bulges on MRI; the exam tells us whether
yours is the culprit. - A test treatment, same session. We treat according
to our first hypothesis and watch the response — symptoms easing, or
moving up out of the leg, confirms the direction; no change tells us to
adjust. You leave the first session with a working diagnosis, a plan,
and usually something that already helps.
Acute sciatica is guided by mechanical pain
reproduction — reproducible signs steer each technique. Once
things are stable, the focus shifts to a functional evaluation
to reduce the risk of it coming back.
How we
treat sciatica — hands-on plus progressive exercise
Treatment is assembled for your mechanism, not from a recipe. The
toolkit:
- Manual therapy — joint mobilisation of the lumbar
spine and hip, and soft-tissue work where the exam points there. UK
national guidance (NICE) recommends manual therapy for low back pain and
sciatica only as part of a package that includes
exercise — which is exactly how it is delivered here, never as
a standalone passive fix. - Neurodynamic techniques — graded, precise
nerve-mobilisation (“nerve gliding”) dosed to calm an irritated nerve
rather than yank on it. Philippe is trained in Clinical Neurodynamics;
the same technique from a video, done at the wrong dose, is a common
cause of flare-ups. - Motor control and progressive loading. This is what
the videos leave out entirely: passive stretching does not build the
strength and load tolerance that prevent recurrence. We progress from
targeted motor-control work to honest strength training — because a back
and hip that can carry load are the best long-term protection. - For sciatica that has lasted months — persistent
pain changes the nervous system itself, and treatment must address more
than tissue: sleep, stress, activity patterns, and unhelpful beliefs
about the spine. This biopsychosocial layer is Philippe’s PhD research
area (chronic pain, VUB), and it is often the missing piece in
long-running cases. (Internal link: chronic pain page, when
live.)
Honest evidence note: most disc-related sciatica
improves substantially over weeks to months, and herniated discs
frequently shrink on their own over time (Chiu et al., 2015, Clin
Rehabil). Physiotherapy speeds and steers that recovery, restores what
pain took away, and reduces recurrence — it is honest to say that time
is also on your side, and dishonest to promise a three-day cure.
“Will
I make it worse?” — flare-ups and recovery expectations
Fear of triggering a flare is one of the most common reasons people
freeze and do nothing — which is itself the worst option.
- Flare-ups are common and are not new damage. An
irritated nerve reacts to a bad night, a long car ride, an
over-enthusiastic stretch. Symptoms rising for a day or two then
settling is a nerve being grumpy, not a disc “going back out”. - Nerves calm slowly. Pain typically improves first;
tingling and numbness lag behind, sometimes by months. Lingering
pins-and-needles during recovery is expected, not alarming. - You will learn your own dosage. Part of treatment
is calibrating — with a therapist watching your response — how far you
can push. That confidence is worth as much as any technique. - The exceptions are the red flags above. Progressive
weakness, saddle numbness or bladder/bowel changes are never a
“flare-up” — they are the emergency list.
Practical info: prescription, reimbursement,
booking, access
- Prescription. For physiotherapy reimbursement in
Belgium a medical prescription is required — bring it,
we invoice you, and you claim reimbursement from your mutuality. You can
consult without a prescription, but the session is then fully at your
charge. - Reimbursement — Belgian mutuality or international
insurer. Philippe Tadger is a conventionné physiotherapist
(INAMI n° 5/58395/34/527): fees follow the official INAMI schedule, with
no supplements. A standard session costs €31.64, of which your mutuality
reimburses €25.39 — you pay a fixed co-payment of €6.25 (€2.50 with
preferential status/BIM), and the one-time intake at your first session
is reimbursed in full. International insurance plans are also
handled — a real advantage if you are with the EU institutions
or an international employer. Full details and the current official
tariffs: pricing & insurance ·
INAMI sources: official
tariff (PDF) · fixed
co-payments. - Location. Ixelles, near Place du
Luxembourg (Philippe practises at ESP), in the EU quarter — a
short walk from Bruxelles-Luxembourg station, with multiple bus and tram
lines nearby. - Languages. Consultations in English, French
and Spanish (Spanish native). - Urgent reminder: if you have any red-flag sign from
the list above, do not book physiotherapy — seek urgent medical care
first.
About Philippe Tadger
Philippe Tadger is a musculoskeletal physiotherapist and manual
therapist with 15+ years of international experience (Venezuela,
Colombia, Spain, France, Belgium). What makes him unusual for a sciatica
patient specifically:
- MSc Orthopaedic Manual Therapy (University of
Zaragoza, honours) — the hands-on and clinical-reasoning training this
page describes. - Clinical Neurodynamics training — the
nerve-specific assessment and treatment techniques central to sciatica
care. - Statistical Editor at Cochrane and PhD candidate in chronic
pain (VUB) — the same person who treats you reads and appraises
the sciatica evidence, so what you are told about your prognosis is what
the science actually supports.
(See also: Manual
therapy in Ixelles.)
Frequently asked questions
How should I sleep with sciatica? On your side with
a firm pillow between your knees (painful leg on top), or on your back
with a pillow under your knees. Avoid stomach-sleeping. To get up, roll
to your side and push up with your arms rather than sitting straight
up.
Is walking good for sciatica? For most people, yes —
short, frequent, comfortable-paced walks are among the best-tolerated
activities. If walking rapidly worsens leg symptoms (classically in
stenosis), that pattern is itself useful diagnostic information —
mention it at assessment.
Can I fix sciatica myself with YouTube exercises?
Gentle stretches and nerve glides genuinely help some people, and we
tell you so. But the right exercise depends on the cause — disc,
stenosis, deep-buttock or referred pain — and the wrong direction can
flare you. If two weeks of sensible self-care hasn’t clearly helped, get
assessed rather than doubling the dose.
Do I need an MRI before physiotherapy?
No. Guidelines do not recommend routine imaging for sciatica without red
flags, because disc bulges are common in pain-free people and the scan
rarely changes early management. If you already have one, bring it — we
read it and still make our own functional and movement diagnosis.
How long does sciatica take to heal? Most
disc-related sciatica improves substantially over weeks to a few months;
nerve symptoms (tingling, numbness) usually fade last. Persistent cases
beyond ~3 months need a broader approach — which is Philippe’s research
specialism.
Is my sciatica from the disc or the piriformis? That
distinction cannot be made reliably by self-testing — it needs a
neurological and movement examination, which is precisely what the first
consultation does. The treatments differ, so the distinction
matters.
When is sciatica an emergency? Saddle numbness, new
bladder or bowel problems, progressive leg/foot weakness (foot drop), or
both legs at once — go to an emergency department the same day. See the
warning-signs section above.
What happens in the first session? History, a
neurological and movement examination, and a test treatment of the first
hypothesis — you leave with a working diagnosis and a plan, usually with
something that already eases symptoms. Bring your prescription and any
imaging.
Do you treat in English? Yes — consultations in
English, French and Spanish, serving both francophone Bruxellois and the
international community around the EU institutions.
👉 Ready to find out what YOUR sciatica actually is? Book a consultation.
References
- NICE Guideline NG59 — Low back pain and sciatica in over 16s:
assessment and management. Manual therapy recommended only as part of a
package including exercise; routine imaging not recommended without red
flags. https://www.nice.org.uk/guidance/ng59 - Chiu C-C et al. The probability of spontaneous regression of lumbar
herniated disc: a systematic review. Clin Rehabil 2015;29(2):184-195.
Herniations frequently regress over time (sequestration 96%, extrusion
70%). - Basson A et al. The effectiveness of neural mobilization for
neuromusculoskeletal conditions: a systematic review and meta-analysis.
JOSPT 2017;47(9):593-615. PMID 28704626. https://pubmed.ncbi.nlm.nih.gov/28704626/
Internal link ideas: Manual Therapy in Ixelles
(drafted), Chronic/persistent pain (future — PhD specialism),
Contact/booking, About Philippe Tadger, future Low Back Pain hub
page.