Lower back pain: How to know if it is serious?
Written by Dr Nelson Lau, MBBS FRACGP, GP. Originally published on 22 November 2024 and updated on 13 May 2026. Medically reviewed by Dr Nelson Lau, MBBS FRACGP, GP.
Contents
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Overview
Lower back pain is something most Australians will deal with at some point. The good news is that most cases are not serious. But knowing when to act fast matters.How Common Is Lower Back Pain in Australia?
Around 4 million Australians live with lower back pain at any one time. It affects every age group.- Young adults: Usually from desk jobs, poor posture, or sport
- Middle-aged adults: Often lumbar disc wear or work-related strain
- Older adults: Arthritis, osteoporosis, or spinal narrowing
What Is the Main Cause of Lower Back Pain?
- Strained muscles or ligaments: This is often the case if you've lifted something heavy, made a sudden movement, or have poor posture.
- Worn-out discs: Those cushiony discs between your vertebrae can wear down over time (degenerative disc disease), causing stiffness and pain.
- Slipped disc: A herniated disc occurs when the inner part of a disc pushes out and presses on nerves, leading to intense pain.
- Sciatica: This nerve pain shoots down your leg when the sciatic nerve is irritated. Ouch!
- Arthritis: Osteoarthritis in the lower back can cause pain, inflammation, and make it hard to move.
- Spinal issues: Conditions like scoliosis or lordosis can put extra stress on your back.
Other Temporary Causes of Lower Back Pain
Not all back pain is a major issue. Sometimes it's just a temporary thing linked to:- Overdoing it: Intense workouts or unfamiliar physical activity can strain those back muscles.
- Stress: Emotional stress can manifest as physical tension, especially in the back.
- Slouching: Sitting for hours with bad posture is a recipe for back pain. Try to be mindful of your posture and maybe invest in an ergonomic chair.
- Monthly cycle: Some women experience back pain as part of their premenstrual symptoms.
- Sleep troubles: A bad mattress or awkward sleeping position can lead to a sore back in the morning.
Lifestyle Factors That Can Make Back Pain Worse
Believe it or not, your daily habits can significantly impact your back health:- Couch potato syndrome: Sitting for long periods weakens back muscles. Get up and move!
- Weak core: Your core muscles are essential for stabilising your spine. If they're weak, your lower back takes the strain.
- Extra weight: Carrying extra pounds, especially around your midsection, puts pressure on your lower back.
- Smoking: Smoking reduces blood flow to the spine, which can accelerate disc degeneration.
- Unhealthy diet: Processed foods, sugary drinks, and unhealthy fats can contribute to inflammation, making back pain worse.
Acute vs Chronic Back Pain: What’s the Difference?
| Acute | Chronic | |
| Duration | Under 6 weeks | Over 3 months |
| Cause | Strain or injury | Ongoing disc or joint issue |
| Management | Rest, gentle movement | Physio, lifestyle changes |
Where Is Your Pain?
Location gives useful clues.- Central lower back: Muscle strain or spinal joints
- One-sided: Could be kidney related or a disc issue
- Shooting down your leg: Likely nerve compression (sciatica)
- Into the groin or abdomen: May point to an organ, not your spine
Muscle Strain, Disc, or Nerve?
- Muscle strain: Follows a specific movement. Pain stays local, eases with rest.
- Disc problem: Pain spreads to the buttock or leg. Bending forward worsens it.
- Nerve compression: Sharp, shooting leg pain with tingling or weakness.
Could It Be an Organ Problem?
Not all lower back pain comes from your spine.- Kidneys: Deep, one-sided pain with changes to urination or fever suggests kidney infection or stones
- Uterus or ovaries: Conditions like endometriosis can cause lower back pain in women
- Serious cases: Rarely, the aorta can be involved in elderly with vascular disease
Back Pain During Pregnancy
Back pain is common and usually normal in pregnancy, particularly in the second and third trimester. It is linked to hormonal changes and postural shifts. See a doctor if the pain is severe, comes with bleeding, or feels like contractions before 37 weeks.Risk Factors for Serious Back Problems
Some people are more likely to develop serious back problems.- History of cancer
- Long-term steroid use or osteoporosis
- Sedentary lifestyle combined with smoking
- Previous spinal surgery or fracture
- Older age, particularly over 55
Red Flags You Should Not Ignore
Most back pain is harmless. These signs are different.- Pain that wakes you at night: Not typical of simple muscle strain
- Pain after a fall or accident: Needs assessment, especially in older people
- Unexplained weight loss: Combined with back pain, this needs investigation
- Fever with back pain: Could be a spinal infection
- Back pain under age 20 or over 55 with no clear reason: Worth checking out
When to Call 000 or Go to the ED
Some symptoms are a medical emergency. Do not wait.- Loss of bladder or bowel control
- Numbness in the groin or inner thighs
- Sudden weakness in one or both legs
- Back pain after a serious accident
Do You Actually Need a Scan?
Not always. Imaging is not recommended for routine back pain.- X-ray: Good for fractures after trauma
- Advanced imaging: Best for visualizing disc or nerve problems.
- Blood and urine tests: Used when infection or kidney issues are suspected
How is lower back pain diagnosed?
If your back pain is persistent or getting worse, see your doctor. They might recommend:- X-rays: To check for fractures or arthritis.
- Modern imaging technology: This provides clear visualization of soft tissues, including discs and nerves.
- Blood tests: To rule out infections or inflammation.
- Physical exam: Your doctor will assess your flexibility, strength, and nerve function.
Mild vs Serious Back Pain: Management Options
| Mild Back Pain | Serious Back Pain |
| Stay active with gentle movement | Specialist referral or hospital care |
| Over-the-counter pain relief | Prescription medication or procedures |
| Heat and physiotherapy | Surgery if indicated |
How to Relieve Lower Back Pain at Home
- Rest and take it easy: Avoid activities that worsen the pain, especially in the beginning.
- Heat and cold: Heat relaxes muscles, while cold reduces inflammation.
- Stretching and exercise: Gentle exercises and stretches can strengthen your core and improve flexibility.
- Over-the-counter relief: Over-the-counter pain relief can help manage pain and inflammation.
- Physical therapy: A physical therapist can create a personalised exercise plan to help you recover.
When to See a GP
- Pain lasting more than a few weeks without improvement
- Pain affecting your sleep or daily life
- Any red flags mentioned above
- You are unsure what is causing it
Can Telehealth Help?
Yes. An online GP can take your history, identify red flags, and point you in the right direction. It works well for:- Reviewing your symptoms and deciding next steps
- Getting a referral for imaging or a specialist
- A prescription for pain relief or anti-inflammatories
- A medical certificate if you cannot work
Preventing Future Back Pain
- Walk or swim regularly to support spinal health
- Build core strength to reduce back load
- Set up your desk and chair properly if you work from home
- Lift with your knees bent and the load close to your body
- Maintain a healthy weight
How Hola Health Can Help
Hola Health connects you with AHPRA-registered medical practitioners. 24 hours a day, 7 days a week. Consultations are bulk billed*, and you can often be seen in under 15 minutes* from anywhere in Australia. Whether you require a clinical assessment for a referral, a prescription, or a medical certificate, you can consult with a practitioner to discuss your needsConclusion
Most lower back pain will settle with time and simple care. The key is knowing when something needs more attention. If you’re unsure, speaking to a doctor is always the right call. Telehealth makes that easier than ever.FAQ
How do I know if my lower back pain is serious?
Look for red flags: night pain, leg weakness, bladder or bowel changes, fever, or unexplained weight loss. Any of these need medical review.When should I see a doctor?
If pain lasts more than a few weeks, disrupts your sleep, or comes with other symptoms, see a GP.What are the red flags?
Bladder or bowel problems, leg weakness, fever with back pain, pain after trauma, and persistent night pain.When should I go to the ED?
Go immediately if you lose bladder or bowel control, have sudden leg weakness, or have back pain after a serious fall or accident.Can an online doctor help with back pain?
Yes. A telehealth GP can assess your symptoms, arrange referrals, and prescribe medication where appropriate.Can lower back pain be related to weather?
You're not imagining it! Cold and damp weather can indeed make back pain feel more intense. Changes in barometric pressure might be to blame, although research is ongoing. While the weather might not directly cause back pain, it can definitely aggravate existing conditions.
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Disclaimer
This blog is for general informational purposes only and does not indicate that Hola Health provides all treatments or preventive measures mentioned. It is not intended to be a substitute for professional medical advice. Always seek the guidance of your doctor or other qualified health professional with any questions you may have regarding your health or a medical condition. For emergencies please immediately contact 000. Any medical topics discussed are intended to educate, not to imply availability through Hola Health.
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