Conditions
Back Pain: Understanding Lower Back Pain, Sciatica and Treatment Options
Lower back pain and sciatica: understanding symptoms, assessment and treatment options in Fribourg
Back pain is not a single disease. It is a category of symptoms. Pain can be acute, come back in episodes or become persistent, stay local in the lower back or radiate into the leg.

In most cases no single structural lesion explains the symptoms on its own. Load and movement, physical capacity, previous episodes, sleep, general health and how the nervous system processes pain signals can all contribute.
At Centre Algos we assess the whole clinical picture and then discuss an individual plan with you. Movement, activity modification, conventional medical care where indicated and our own treatments can sit alongside each other in one plan, reassessed over time.
What is back pain?
Back pain is not a single disease. It is a category of symptoms. Pain can sit in the lower back, in the mid back or in the upper back, start suddenly or build up gradually, stay local or come with sensations travelling into the buttock or leg.
Most people who seek help for back pain describe lower back pain, in the lumbar region. Several structures can contribute to the symptoms:
- muscles and their surrounding tissue
- spinal joints, including the facet joints
- ligaments
- intervertebral discs
- nerve-related structures when pain radiates
- several of these together
In practice it is not always possible to name the painful structure with certainty. This is what clinicians call non-specific low back pain: the pain is real and can significantly affect function and quality of life, but no single structural lesion explains the symptoms on its own.
Non-specific low back pain does not mean unexplained, imaginary or unimportant pain. It simply means the pain cannot be reduced to one identifiable abnormality.
Acute, recurrent and persistent back pain
An acute episode often appears quickly, sometimes after an unfamiliar movement or effort, sometimes with no clear trigger. Pain can be intense and can strongly limit movement for days or weeks.
Other people describe pain that develops gradually, or episodes that return regularly with calmer periods in between. Some back pain becomes persistent and lasts for months.
Persistent pain is not simply an acute injury that never healed. It usually reflects an interaction between several elements:
- the sensitivity of the tissues involved
- movement, load and daily activity
- available physical capacity
- sleep and the quality of recovery
- previous painful episodes
- general health and associated conditions
- stress and life context where they play a role
- how the nervous system processes pain signals
Recognising these elements does not mean the pain is psychological. Persistent pain is real, and it deserves a serious clinical assessment.
Local back pain or sciatica: what is the difference?
Many people use the word sciatica to describe severe back pain. These are two different clinical situations, and the distinction changes how the problem is assessed.
Local or mechanical-type back pain
Pain sits mainly in the lumbar or back region. It may extend into the buttock or upper thigh without clear features of nerve-root involvement. It is often movement-related: certain positions or movements aggravate it, others ease it.
Sciatica and radicular symptoms
Sciatica describes pain travelling down the leg along a nerve pathway, often past the knee. This sciatic pain may come with other features:
- tingling or pins and needles
- numbness or an area of altered sensation
- burning or electric-shock sensations
- muscle weakness in the leg or foot
Sciatica is therefore a pattern of nerve-related symptoms, not another word for severe back pain. A herniated disc is one possible cause, but not every case of sciatica is the same and not every disc abnormality causes symptoms.
Lower back pain with leg pain deserves careful assessment, in particular to look for neurological signs. That assessment happens in consultation, not at a distance: this page cannot provide a diagnosis.
Discs, disc bulges and herniated discs
Intervertebral discs sit between the vertebrae. They help distribute load and allow the spine to move. Over time their composition changes. This is disc degeneration, a very common process that is part of normal ageing.
A disc can also show a bulge or protrusion, or a herniation, when part of the disc extends beyond its usual boundary. In some cases this can irritate or compress a nearby nerve root and produce symptoms in the leg.
- disc degeneration is not the same thing as pain: it also occurs in people with no symptoms
- a protrusion seen on imaging does not automatically explain the pain someone feels
- a herniated disc can cause marked symptoms, yet many situations improve without surgery
- pain intensity does not necessarily match the size of the finding
The words we use matter. A disc is not destroyed or worn out because it shows age-related change.
MRI findings and pain: what the images actually show
A systematic literature review published in AJNR in 2015 analysed imaging in people with no back pain at all. Degenerative findings were common and increased markedly with age, including in completely asymptomatic people.
The most frequent findings include:
- disc degeneration
- disc bulging
- facet-joint changes
- other age-related spinal changes
This does not mean imaging is meaningless. A second analysis by the same authors found that certain findings, disc degeneration in particular, are more prevalent in adults with low back pain than in asymptomatic controls. Some imaging findings genuinely carry clinical weight.
The accurate message sits in between: imaging findings and symptoms do not always correspond one to one. An MRI finding has to be interpreted together with the clinical history, the examination and how symptoms behave, rather than read in isolation as the automatic explanation for pain.
Seeing an abnormality on an MRI does not mean your back is irreversibly damaged, nor that this finding is necessarily the source of your pain.
Why does back pain develop?
A single cause can rarely be isolated. It is more useful to speak of factors that may contribute to symptoms or keep them going:
- a sudden or unfamiliar load
- repetitive physical demands
- physical capacity that is low relative to daily demands
- previous episodes of back pain
- prolonged or unusual activity
- injury
- age-related structural changes
- disc or joint-related problems
- nerve irritation
- occupational demands
- sleep and recovery
- general health and associated conditions
- individual susceptibility
Posture deserves a specific comment. There is no perfect posture that prevents back pain, and it would be inaccurate to say that poor posture causes it. What can happen is that staying in one position for a long time, or repeating certain demands, aggravates symptoms in some people. Varying positions is generally more useful than trying to hold an ideal one.
Why can back pain persist?
When back pain lasts, it becomes important to consider the different factors that may be contributing to the persistence of symptoms.
- reduced physical capacity after a period of lower activity
- a mismatch between daily demands and that capacity
- repeated episodes that leave the area more sensitive
- disturbed sleep and insufficient recovery
- general health factors
- apprehension about movement, where clinically present
- changes in how the nervous system processes pain signals, sometimes called sensitisation
Pain that persists does not automatically mean that tissue damage is continuing. That distinction matters, because it makes a gradual return to movement possible. We discuss this mechanism in more detail on our chronic pain page.
How is back pain assessed?
A useful assessment does more than locate the painful area. It looks at the clinical picture as a whole:
- the exact location of the pain
- how it started and how long it has lasted
- what aggravates and what eases it
- whether pain radiates into the leg
- tingling, numbness or weakness
- the impact on walking, work, sport and sleep
- previous episodes and previous injuries
- treatments already tried and current medication
- any imaging already available
- medical history and general health
Where the clinical situation calls for it, the assessment also considers neurological signs, broader systemic symptoms and, in selected cases, metabolic, nutritional or recovery-related factors. This does not mean that every person needs extensive testing.
Do I need an MRI for lower back pain?
For uncomplicated low back pain, with or without sciatica, routine imaging is generally not needed outside a specialist setting.
Imaging becomes relevant in specific situations:
- when serious pathology is suspected
- when significant neurological symptoms are present
- when symptoms are atypical
- after significant trauma
- when persistent symptoms genuinely change clinical decision-making
- when a specialist opinion or a procedure requires imaging
There is no fixed timeline that fits every situation. The decision is made individually, with the professionals involved in your care.
How is back pain treated?
There is no single treatment for every type of back pain. Management depends on whether pain is acute or persistent, whether symptoms radiate, whether neurological signs are present, how function is affected, which contributing factors are identified, what has already been tried and what your own goals are.
The parts of a treatment plan do not have to follow a fixed order. Movement, activity modification, conventional medical care where appropriate and treatments offered at Centre Algos can sit alongside each other in one plan, and are reassessed over time.
Movement and exercise
For many types of back pain, staying appropriately active and gradually rebuilding movement and physical capacity is useful. Exercise is one recognised component of a broader approach to persistent low back pain.
Different forms of exercise can suit different people: walking, gradual strengthening, mobility work, water-based activity, supervised programmes. No single method is universally superior, and we do not prescribe exercises over the internet.
Exercise does not compete with other treatments, it accompanies them. We do not use phrases such as your back is unstable or you need to strengthen your core to fix your spine. Progression is built around your tolerance, not against it.
Rest and activity modification
Temporarily reducing a particularly aggravating activity can be appropriate, especially during an acute episode. Strict, prolonged bed rest is not a recommended long-term strategy.
The aim is to maintain or gradually restore the activities that matter to you, where the clinical situation allows. Needing to ease off for a few days is not a failure.
Medication
Many people who consult us are already taking something: analgesic medication, anti-inflammatory medication or other medication depending on the clinical situation. We do not routinely prescribe these treatments, and we do not ask you to stop a treatment you are on.
We treat current medication as part of your present care and clinical history. We take it into account during assessment and discuss it with you, in coordination with the professionals following you.
Injections, procedures and surgery
Depending on the diagnosis, conventional specialist care may include targeted injections, certain interventional procedures or surgery.
Surgery is generally considered in selected clinical situations: significant neurological compromise, a specific structural problem, or persistent disabling symptoms where specialist assessment identifies a relevant surgical target.
Many people want to explore options without surgery, and that is a reasonable starting point. We do not, however, position ourselves against surgery and we do not claim to prevent it. Where a surgical opinion is indicated, we encourage you to seek it.
How we approach back pain at Centre Algos
We do not look for a single hidden explanation for your pain. We work to understand the clinical picture and the factors contributing to it, so that we can build a realistic plan with you.
During the assessment we look at:
- the type of pain and how long it has lasted
- how it affects your activities
- movement, load and physical capacity
- the presence of neurological symptoms
- previous episodes and previous treatments
- imaging already performed, if any
- current medication
- sleep and recovery
- general health and, where clinically relevant, metabolic or nutritional factors
We then discuss an individual plan with you. Movement and appropriate activity are part of that plan in most situations. Centre Algos treatments can sit alongside rehabilitation and appropriate conventional medical care, without replacing them, and without implying that every person needs physiotherapy.
The plan is reassessed over time: what is relevant at the start of an episode is not necessarily what is relevant a few weeks later.
Which Centre Algos treatments may be considered?
Not all of our treatments are relevant to back pain, and this is not a catalogue. The options below are the ones that may be discussed, depending on the clinical situation.
Depending on the clinical picture, these options may also connect with our approach to musculoskeletal disorders, osteoarthritis or neck pain.
Percutaneous hydrotomy
Percutaneous hydrotomy uses superficial micro-injections of sterile physiological saline NaCl 0.9% in the affected region. It may be considered for selected persistent or recurrent back pain, including certain disc-related or sciatic presentations, after assessment.
At Centre Algos, percutaneous hydrotomy may be considered in selected patients with persistent back pain, disc-related symptoms or sciatica. The therapeutic rationale may include supporting the local tissue environment and disc hydration. Whether this approach is appropriate depends on the individual clinical situation and is discussed during the consultation.
As with other treatment options, we explain the expected benefits, the available evidence and any uncertainties so that the decision can be made together with the patient.
Functional Biology & Micronutrition
Functional Biology & Micronutrition may be relevant in selected people where the history points to broader factors: nutritional status, metabolic health, recovery, general health or associated conditions.
This does not mean that ordinary mechanical back pain is explained by blood values, or that everyone needs testing. Targeted investigation is proposed only when the clinical situation gives a concrete reason to look further.
Cupping therapy
Cupping therapy may be considered for selected muscular tension or musculoskeletal discomfort in the back. It addresses local comfort and tension, and does not change the structure of the spine.
Breuss massage
Breuss massage is a gentle back massage that may be offered as support during muscular tension and back discomfort. We attribute no disc regeneration, vertebral realignment or structural correction to it.
Phytotherapy
Phytotherapy can play a supportive role where clinically appropriate, taking current medication and possible interactions into account. It does not modify spinal structures.
When does back pain need urgent medical assessment?
These situations are uncommon, but they need prompt medical assessment rather than a scheduled appointment. Contact a doctor or emergency service without delay if you have:
- new difficulty controlling your bladder or bowel
- numbness in the saddle or perineal region
- significant or rapidly progressing weakness in one or both legs
- severe or rapidly worsening neurological symptoms
- significant trauma, a fall or an accident
- fever or feeling systemically unwell together with marked back pain
- a history of cancer with new, unusual back pain
- unexplained weight loss or other significant systemic symptoms
Loss of bladder or bowel control, numbness in the saddle region or rapidly progressing leg weakness is a medical emergency. Go to an emergency department immediately: do not book a routine Centre Algos consultation in this situation.
When back pain keeps limiting your life
Back pain becomes genuinely heavy when it affects walking, work, sleep, sport, family life or the simplest everyday movements.
An assessment can clarify the clinical picture and the options that apply to you. We review your symptoms, clinical history, function, treatments already tried and, where relevant, broader factors, then discuss an individual plan with you.
If your back pain persists or keeps coming back, you can request a consultation at Centre Algos in Fribourg.
Frequently asked questions
- What is the difference between back pain and sciatica?
- Local back pain sits mainly in the lumbar or back region and may extend into the buttock. Sciatica describes pain travelling down the leg along a nerve pathway, often with tingling, numbness or weakness. Sciatica is a pattern of nerve-related symptoms, not simply severe back pain.
- What causes lower back pain?
- In most cases no single lesion explains the pain. Several factors may contribute: an unfamiliar load, repetitive demands, reduced physical capacity, previous episodes, age-related changes, disc or joint-related problems, sleep and recovery, or general health.
- Can a slipped or herniated disc improve without surgery?
- Many disc-related presentations improve over time with appropriate management and without surgery. This cannot be promised in advance: the course depends on the individual situation, and a neurological deficit can change management and make specialist assessment necessary.
- Does a disc bulge on MRI always cause back pain?
- No. Disc bulging and degeneration are common, including in people without pain, and become more frequent with age. Some findings remain clinically important, but an image should always be interpreted together with symptoms and clinical examination.
- Do I need an MRI for lower back pain?
- For uncomplicated low back pain, with or without sciatica, routine imaging is generally not needed outside a specialist setting. It becomes relevant when serious pathology is suspected, when significant neurological symptoms are present, when symptoms are atypical, after trauma, or when it genuinely changes clinical decision-making.
- Should I rest when my back hurts?
- Temporarily reducing a very painful activity can be appropriate during an acute episode. Strict, prolonged bed rest is not recommended as a lasting strategy. The aim is to return gradually to the activities that matter to you, at a tolerable pace.
- Is exercise good for chronic lower back pain?
- Yes. Exercise is included as one component of care for chronic primary low back pain. No single method is universally superior: the form of activity and the progression are chosen individually, and exercise can be combined with other treatments.
- Why does my back still hurt after months?
- Pain that lasts does not necessarily mean tissue damage is continuing. Several elements can keep symptoms going: reduced physical capacity, a mismatch between demands and capacity, repeated episodes, disturbed sleep, general health factors, apprehension about movement, and changes in how the nervous system processes pain signals.
- Can back pain be treated without surgery?
- Most back pain is managed without surgery, combining appropriate movement, activity modification, medical care where indicated and, depending on the situation, treatments offered at Centre Algos. Surgery nonetheless has its place in selected situations, and we do not position ourselves against it.
- Can back pain be treated without injections?
- Yes, many management plans involve no injections at all. Which options are appropriate depends on the diagnosis, the symptoms and your individual circumstances. Where an injection or procedure appears indicated, that is a matter for specialist assessment.
- Can percutaneous hydrotomy be considered for chronic back pain or sciatica?
- It may be considered in selected patients with persistent or recurrent back pain, including certain disc-related symptoms or sciatica. Whether percutaneous hydrotomy is appropriate depends on the individual clinical situation and is discussed during the consultation.
- When is back pain an emergency?
- New difficulty controlling the bladder or bowel, numbness in the saddle region, significant or rapidly progressing leg weakness, major trauma, fever with marked back pain, or rapidly worsening neurological symptoms all require immediate medical assessment.
Related treatments
Percutaneous Hydrotomy
A local treatment approach that may be considered for selected persistent back pain, depending on the clinical situation.
Breuss Massage
A gentle back massage that may be considered as supportive care for muscular tension and back discomfort.
Functional Biology & Micronutrition
Using nutrition and targeted biological information to better understand your individual needs.
Medical sources and further reading
- NICE, Low back pain and sciatica in over 16s: assessment and management (NG59)UK guidance on assessment, imaging and management of low back pain and sciatica.
- Brinjikji W et al., Systematic literature review of imaging features of spinal degeneration in asymptomatic populations, AJNR 2015Prevalence of degenerative findings in people without pain, by age group.
- Brinjikji W et al., MRI findings of disc degeneration are more prevalent in adults with low back pain than in asymptomatic controls, AJNR 2015Comparative analysis showing that some imaging findings do carry clinical relevance.
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