Why Does My Back Keep Going Into Spasm?

If Your Back “Keeps Going Out”, You’re Not Alone

One of the most common things we hear at Trained Physio & Fitness East Perth is:

“My back keeps going into spasm.”

Whether it happens when you’re bending over to put your socks on, getting out of the car, working out at the gym, or simply rolling over in bed, recurring back spasms can be frustrating, painful, and often leave you wondering what is actually causing the problem? and why does it keep happening?

The good news? In most cases, back spasms are treatable, and understanding the underlying cause is the first step towards preventing them from returning.

What Is a Back Spasm?

A back spasm is an involuntary contraction of the muscles surrounding your spine. It often feels like:

A sudden sharp grab or lock in your back
Tightness that makes it difficult to stand upright
Pain when moving, walking, sitting, or changing positions
Feeling like your back is “stuck”
Muscle tightness that can last hours or even days

While the muscles are what you feel tightening, the muscle itself is often not the primary problem.

1. Your Back Muscles Are Protecting Something

Think of a back spasm as your body’s alarm system.

When the spine detects irritation or overload the surrounding muscles can tighten to protect the area.

This can occur due to:

Joint irritation
Disc irritation
Ligament strain
Sudden overload
Poor recovery after activity
Poor lifting technique

In many cases, the muscle spasm is actually a protective response rather than the injury itself.

2. You Have a Weak Link Somewhere Else

Many people assume their back is weak.

Often, that’s not the case.

Recurring back spasms can be related to:

Reduced hip mobility
Poor trunk control
Weak gluteal muscles
Reduced spinal endurance
Poor lifting technique

When other areas aren’t doing their job effectively, the lower back can become overloaded and more prone to spasms.

3. You’re Not Actually Fully Recovering

A common pattern we see is:

Back spasms
Rest for a few days
Pain settles
Return to normal activity
Back spasms again weeks later

The pain may improve, but the underlying issue often remains.

Without addressing strength, movement patterns, and load tolerance, the cycle with always continue.

4. You’re Doing Too Much, Too Soon

If we had a $1 for every time someone came in with and said they were gardening all weekend and now they cant move, or they were changing their bedsheets, tried to lift the mattress and bang! f

The result?

Your back responds by tightening and protecting itself.

5. Stress and Fatigue Can Play a Role

Many people are surprised to learn that stress, poor sleep, and fatigue can contribute to recurring back pain and spasms.

When your nervous system is under increased stress, muscles can become more sensitive and protective.

This doesn’t mean the pain is “in your head.”

It means the body and nervous system work together more closely than most people realise.

Is It a Disc Bulge?

Not necessarily.

Many people immediately assume they have a disc injury.

While disc irritation can contribute to back spasms, there are many possible causes, including:

Facet joint irritation
Muscle strains
Ligament sprains
Reduced movement control
General overload

In fact, many people with disc bulges on MRI have no pain at all.

This is why a thorough assessment by a Trained Physio is often more valuable than simply relying on scan findings.

When Should I See a Physiotherapist?

If your back:

Keeps “going out”
Repeatedly spasms
Limits your work, gym, sport, or daily activities
Is becoming more frequent
Causes you to avoid movement out of fear

It’s worth getting assessed.

The sooner the underlying cause is identified, the sooner you can begin addressing the problem rather than simply managing flare-ups.

How Physiotherapy Can Help

At Trained Physio & Fitness, we don’t just treat the symptoms—we identify why your back keeps going into spasm.

Your assessment may include:

Movement analysis
Strength testing
Mobility assessment
Work and lifestyle considerations
Exercise and training review

From there, we’ll develop a personalised treatment plan that may include:

Hands-on treatment
Mobility exercises
Strengthening programs
Core and glute rehabilitation
Return-to-gym guidance
Education and self-management strategies

Our goal is not simply to get you out of pain.

Our goal is to help stop the problem from coming back.

The Bottom Line

Back spasms are common, but they’re rarely random.

If your back repeatedly goes into spasm, there’s usually an underlying reason that can be identified and addressed.

Rather than waiting for the next flare-up, getting assessed early can help you build confidence, reduce pain, and return to the activities you enjoy.

Ready to Stop Your Back Going Into Spasm?

If you’re tired of your back “going out” every few months, the team at Trained Physio & Fitness can help.

Our experienced physiotherapists will identify the underlying cause of your symptoms and develop a personalised plan to help you move better, feel stronger, and reduce the risk of future episodes.