Sciatica & Disc Herniation Physiotherapy — Erina & Central Coast
Pain, numbness, or tingling that travels down your leg — sometimes all the way to your foot — is the hallmark of sciatica. It can be genuinely disruptive, particularly in the early stages, but it's also one of the more well-understood conditions we treat, and the outlook is generally very good with the right management.
What Is Sciatica?
Sciatica isn't a diagnosis in itself — it's a description of symptoms caused by irritation or compression of one of the nerve roots that make up the sciatic nerve, most commonly related to a disc herniation in the lower back pressing on or chemically irritating the nerve. The disc's soft inner material can bulge or leak out through a weakened outer layer, and it's this irritation to the nearby nerve, rather than the back itself, that produces the leg symptoms.
It's worth knowing that disc bulges are extremely common, including in people with absolutely no pain at all. What matters clinically is whether a bulge is actively irritating a nerve, not simply whether one shows up on a scan.
What Causes It?
Disc herniations often follow a specific lifting or bending injury, particularly involving a twisting motion, though they can also develop gradually from repetitive loading over time. They're more common in occupations involving heavy or repetitive lifting, and in people who've had previous episodes of back pain.
Common Symptoms
Pain, numbness, or tingling travelling down one leg, sometimes past the knee
Leg symptoms that are sometimes more troublesome than the back pain itself
Pain that worsens with sitting, bending forward, or coughing and sneezing
Weakness in the leg or foot in more significant cases
Symptoms that ease somewhat with lying down or specific positions
How We Diagnose It
Assessment includes specific neurological tests — checking reflexes, strength, and sensation in the leg — alongside movements that help identify which nerve root is likely involved and how irritable it currently is. Imaging isn't usually needed initially, since the clinical picture is often clear, and most cases improve without ever requiring a scan. We reserve imaging for cases with significant or progressive weakness, or when recovery isn't following the expected pattern.
How Physiotherapy Helps
In the acute, irritable stage, treatment focuses on reducing nerve irritation through specific positioning, movement, and hands-on techniques, along with clear guidance on what to avoid temporarily. Most people are relieved to learn that gentle movement is generally more helpful than strict bed rest, even though it can feel counterintuitive when leg pain is significant.
As symptoms settle, we progress into a strengthening program targeting your core and lower back, since building genuine load tolerance is what protects against a repeat episode. Recovery from sciatica is often not perfectly linear — leg symptoms can take longer to fully resolve than back pain, and we'll help you understand what a normal, if occasionally frustrating, recovery trajectory looks like.
Self-Care While You Wait For Your Appointment
Avoid prolonged sitting where possible, and find whichever position — standing, lying, or walking — provides the most relief in the short term. Gentle walking is often well tolerated and can help. If you notice new or worsening weakness, numbness in the groin or inner thigh area, or difficulty controlling your bladder or bowel, seek urgent medical attention, as these are signs requiring prompt assessment.
Frequently Asked Questions
Will I need surgery for my disc herniation?
Only a small minority of cases require surgery. The large majority of disc-related sciatica improves significantly with conservative management, and surgery is generally reserved for cases with significant or worsening weakness or symptoms that aren't settling despite appropriate treatment.
How long does sciatica take to improve?
It varies, but many cases show meaningful improvement within six to twelve weeks, though full resolution of leg symptoms can sometimes take longer than the back pain itself.
Is it safe to keep exercising with sciatica?
In most cases yes, with some temporary modifications. We'll help you identify which movements to avoid in the acute stage and how to safely stay active while your nerve settles.
Book a Lower Back Assessment in Erina
If sciatica or a disc-related issue is getting in the way of work,
Call Thrive Physiotherapy or book online today to get started.
Not sure if this is what's causing your back pain? Visit our Lumbar Spine Physiotherapy hub page to see the full range of lower back conditions we treat.