Sciatica Treatment: Causes, Options and Regenerative Care in Bangkok

What is sciatica?

Sciatica is pain that travels along the path of the sciatic nerve, from the lower back or buttock down the back of the leg, sometimes into the foot. It is a symptom, not a diagnosis: something is irritating or compressing one of the nerve roots that form the sciatic nerve, usually the L4, L5 or S1 root in the lower spine.

Typical symptoms include:

• Sharp, burning or electric pain down one leg, often worse than the back pain
• Numbness or pins and needles in the leg or foot
• Weakness, such as difficulty lifting the foot or standing on tiptoes
• Pain that worsens with sitting, coughing or sneezing

The NHS sciatica guide notes that most people get better within 4 to 6 weeks, but some have symptoms that last much longer.

Causes and risk factors

The most common cause of sciatica is a herniated (slipped) disc pressing on a nerve root. The disc material also releases inflammatory chemicals that irritate the nerve. Other causes include:

• Spinal stenosis: narrowing of the spinal canal or nerve exits, more common after 50
• Spondylolisthesis: one vertebra slipping forward on another
• Degenerative disc changes and bony spurs from wear over time
• Piriformis syndrome: irritation of the nerve by a buttock muscle (less common and debated)

Risk factors include age between 30 and 50, heavy lifting or twisting work, long periods of sitting, smoking, excess body weight and diabetes. The Mayo Clinic overview of sciatica lists similar factors.

How sciatica is diagnosed: why the MRI matters

Diagnosis starts with your history and a physical examination, including the straight-leg-raise test, reflexes, strength and sensation. These help a doctor work out which nerve root is involved.

Imaging is not always needed early on. An MRI scan becomes important when pain lasts beyond about six weeks, when there is weakness, or when injections or surgery are being considered. MRI shows discs, nerve roots and soft tissue, so it can confirm a disc herniation, stenosis or another cause. X-rays show bone alignment and slippage but not discs or nerves. Nerve conduction studies are sometimes used to separate sciatica from peripheral neuropathy.

If you already have an MRI, you can send your MRI for a doctor review. The scan is the starting point for any sensible plan, regenerative or conventional.

Conventional sciatica treatment options

The UK NICE guideline NG59 on low back pain and sciatica is one of the clearest summaries of mainstream care. In broad terms:

• Stay active and exercise. Bed rest is not recommended. Structured exercise and physiotherapy help many people return to normal activity.
• Medicines. Anti-inflammatory medicines can help short term. NICE advises against gabapentinoids, other antiepileptics, oral corticosteroids and benzodiazepines for sciatica because of limited benefit and real side effects.
• Epidural steroid injections. These may be considered for acute and severe sciatica. Relief is usually short to medium term.
• Surgery (microdiscectomy or decompression). Considered when pain persists despite good non-surgical care, or urgently if there is progressive weakness or cauda equina syndrome. Surgery often relieves leg pain faster, although long-term outcomes with and without surgery tend to converge for many patients.

Regenerative options: what the evidence says

Regenerative treatments for sciatica aim at the source, usually a degenerated or herniated disc or an inflamed nerve root. They are not approved standard treatments in the US, UK or Australia for this use, which is one reason patients travel.

• PRP therapy (platelet-rich plasma): concentrated platelets from your own blood. Small trials have compared epidural PRP with epidural steroid for radicular pain and reported similar short-term improvement, but studies are small. See PubMed research on PRP for lumbar radicular pain.
• Stem cell therapy (mesenchymal stromal cells, MSCs): injected into a painful degenerated disc. Pilot studies and early-phase trials suggest some patients have less pain and better function, but trials are small, often lack placebo groups, and results have been mixed. See PubMed studies on mesenchymal stem cells for disc degeneration.
• Exosome therapy: cell-derived vesicles studied mostly in the laboratory and animals for disc and nerve repair. Human evidence for sciatica is very limited.

The US Food and Drug Administration warns patients about unapproved stem cell therapies, and any clinic should tell you plainly what is proven and what is not.

Comparing sciatica treatment options

Option	Main goal	Evidence level	Downtime	Key limitation
Exercise and physiotherapy	Function, pain control	Strong for overall care	None	Takes weeks; needs commitment
Anti-inflammatory medicines	Short-term pain relief	Moderate	None	Stomach, kidney and heart risks
Epidural steroid injection	Reduce nerve inflammation	Moderate, short term	1–2 days	Effect often wears off
Microdiscectomy	Remove disc pressing on nerve	Strong for leg pain relief	2–6 weeks	Surgical risks; re-herniation possible
PRP injection	Support healing, reduce inflammation	Early, small trials	1–3 days	Not standard; variable results
Stem cell (MSC) injection	Support disc repair	Early-phase trials	Several days	Experimental; uncertain long-term effect

Self-help while sciatica settles

Most people can do a great deal to help themselves in the first weeks:

• Keep moving. Short, regular walks and gentle stretches are better than resting in bed.
• Use heat or cold. Many people find a heat pack eases muscle spasm; others prefer cold in the first days.
• Change position often. Avoid sitting for long periods; stand and walk every 30 to 45 minutes.
• Return to work and normal activity gradually. Modified duties are often better than time off completely.
• Watch for warning signs. Numbness around the genitals or buttocks, bladder or bowel changes, or weakness in both legs need emergency care.

If symptoms are not improving after about six weeks, it is reasonable to ask for a specialist review and imaging.

Who may be a candidate for regenerative treatment?

A doctor may consider regenerative options if you:

• Have sciatica lasting more than three months despite physiotherapy and medicines
• Have an MRI showing a disc-related cause, such as a contained herniation or early disc degeneration
• Want to explore alternatives before surgery, or are not suitable for surgery
• Have realistic expectations and understand the evidence is still early

Who should not have regenerative treatment

Regenerative injections are usually not appropriate if you have:

• Red-flag symptoms such as cauda equina syndrome or rapidly worsening weakness (these need urgent surgery)
• A large extruded disc fragment causing severe nerve compression
• Active infection, active cancer or a blood disorder affecting platelets
• Pregnancy, or uncontrolled diabetes or heart disease
• Spinal instability needing surgical stabilisation

Risks and side effects

All spinal injections carry some risk. Common effects are temporary pain flare at the injection site and stiffness for a few days. Less common risks include infection, bleeding, nerve irritation, headache after an epidural, and allergic reactions. For disc injections there is a small risk of discitis (disc infection). With cell-based products the long-term safety data are still limited, and quality depends heavily on how cells are prepared. Cells used in our programmes are prepared in ISO 9001:2015-certified partner laboratories.

What a sciatica treatment trip to Bangkok looks like

1. Before you travel: send your MRI, X-rays and medical reports on WhatsApp. A doctor reviews them and tells you whether a regenerative program is reasonable, or whether you should pursue conventional care first.
2. Day 1: in-person consultation, examination and review of your imaging; blood tests if needed.
3. Day 2 to 4: procedure day or days, depending on the protocol (for example image-guided PRP or cell injection), followed by observation.
4. Remaining days: follow-up check, physiotherapy guidance and a home exercise plan.

Most programmes need roughly 5 to 10 days in Bangkok, depending on the protocol and your recovery. Patients come from Australia, the UK, the US and Canada. See how it works for the full step-by-step process. No outcome can be guaranteed.

Recovery and aftercare at home

After returning home, most people are advised to:

• Avoid heavy lifting, twisting and long periods of sitting without breaks for the first weeks
• Walk daily and follow a graded physiotherapy plan
• Avoid anti-inflammatory medicines for a period after PRP, if your doctor advises, as they may blunt the intended response
• Share progress and any new symptoms with the medical team on WhatsApp
• Have a follow-up review, and sometimes repeat imaging, after several months

Any sudden weakness, bladder or bowel changes, or fever needs urgent local medical care.