Most people with silicosis do not feel unwell in the early stages. That is what makes this disease so easy to miss, and so important to understand. If you have worked with materials like engineered stone, concrete, brick or natural stone, knowing the early signs, and knowing when a persistent cough is worth a doctor’s visit, could make a real difference to your long term lung health.
Why silicosis often shows no early symptoms
Silicosis is a lung disease caused by breathing in fine crystalline silica dust. This dust is released when materials such as engineered stone, concrete, brick and natural stone are cut, ground, drilled or polished. The particles are around 100 times smaller than a single grain of sand, small enough to slip past your body’s usual defences and settle deep in your lungs.
Once there, the dust triggers inflammation. Over months or years, this inflammation can lead to scarring of the lung tissue, known as fibrosis. Scarred lung tissue is stiffer and less elastic than healthy tissue, so your lungs have to work harder to move air in and out.
This scarring process is usually slow and silent. In the early stages, most people feel completely normal, with no pain, no obvious breathlessness and nothing that would prompt a trip to the doctor. This is the central challenge of silicosis: by the time symptoms become noticeable, some lung damage has often already occurred. It is exactly why regular health monitoring for people at risk, rather than waiting for symptoms, matters so much.
The early symptoms of silicosis explained
When symptoms do appear, they tend to develop gradually rather than all at once. It is worth knowing what each one can look like, because on their own, several of these signs are easy to put down to general tiredness or a common chest cold.
Breathlessness
Shortness of breath is usually the first symptom people notice, often during physical activity rather than at rest. You might find yourself puffing on a set of stairs you used to manage easily, or needing more recovery time after physical work.
A persistent cough
A cough that lingers for weeks, rather than clearing up like a cold or flu usually would, is a common early sign. It may be dry, or it may bring up small amounts of mucus.
Fatigue and tiredness
Ongoing tiredness that is not explained by poor sleep or a heavy workload is one of the more overlooked symptoms of silicosis, partly because it is so easy to attribute to simply working hard.
Chest pain and weight loss
Some people notice tightness or discomfort in the chest. Unexplained weight loss can also occur, particularly as the disease progresses.
None of these symptoms confirms silicosis on its own. They can all have other causes. But if you have worked around silica dust and notice any of them, particularly breathlessness or a cough that will not go away, it is worth raising with your GP (general practitioner) rather than waiting to see if it passes.
Chronic, accelerated and acute silicosis: why timing matters
How quickly symptoms appear, and how severe they become, depends on the type of silicosis you develop. This is largely determined by how much silica dust you were exposed to, and for how long.
Chronic silicosis is the most common form. It develops after ten years or more of exposure to lower levels of silica dust, and it tends to progress quietly, sometimes not causing noticeable symptoms until years after the exposure took place.
Accelerated silicosis develops faster, generally within three to ten years of exposure to moderate or high levels of silica dust. This is the form that has driven much of the recent rise in cases among Australian workers in the engineered stone industry, and it can cause more rapid scarring and earlier symptoms than the chronic form.
Acute silicosis is the least common but most serious type. It can develop within weeks or months of very high, intense exposure to silica dust, and it tends to cause severe symptoms quickly, including significant breathlessness.
Working out which type you may be at risk of is something your GP or respiratory physician (a lung specialist) will consider alongside your occupational history and test results. It is not something to try to work out on your own.
When to see your GP about possible silicosis
Don’t wait for symptoms to appear before you act, and don’t wait for them to become severe before you get them checked. Book an appointment with your GP if you have worked in a high-risk industry, such as construction, mining, tunnelling, stonemasonry or quarrying, and you notice breathlessness, a persistent cough, unusual fatigue, chest pain or unexplained weight loss.
It is worth seeing your GP even if you left that industry years ago. Silicosis symptoms can develop or worsen long after exposure has stopped, so your work history matters just as much as your current job.
How silicosis is diagnosed in Australia
There is no single test that confirms silicosis. Instead, your GP and a respiratory physician will build a picture using your history, a physical examination and a combination of tests.
Your GP appointment
Your GP will ask about your medical history and, importantly, your occupational history. This includes where you have worked, what tasks you performed, what materials you were exposed to and what dust control measures, such as wet cutting or dust extraction, were in place. They will also ask about your symptoms and listen to your lungs with a stethoscope.
Tests used to confirm silicosis
If silicosis is suspected, your GP will refer you to a respiratory physician for further investigation. Commonly used tests include a high-resolution CT scan (HRCT), which gives detailed images of the lungs and is currently the most sensitive way to detect early scarring, and a chest X-ray, which can help but is less likely to pick up silicosis in its earliest stages. Lung function tests are also used to assess how well your lungs are working, including spirometry, which measures how much air you can breathe in and out, and DLCO testing, which measures how well oxygen passes from your lungs into your bloodstream. Blood tests may be ordered, and in some cases a bronchoscopy, a camera test that checks for infection or inflammation in the airways, is needed if the diagnosis is still unclear.
Confirming the diagnosis
A GP cannot confirm a diagnosis of silicosis on their own. This is the role of a respiratory physician, who will review your history, examination findings and test results together before reaching a diagnosis.
Silica dust health monitoring: finding silicosis before symptoms start
If you currently work with silica dust, your employer has a legal duty under Australian work health and safety law to provide health monitoring where there is a significant risk to your health. This is different from a diagnostic work-up. Health monitoring is designed to catch early changes before you notice anything is wrong.
At a minimum, health monitoring includes a record of your occupational and exposure history, a standardised questionnaire about your respiratory health, lung function testing and a chest X-ray for workers assessed as higher risk. If a result raises any concern, you will be referred to a respiratory physician for a full diagnostic work-up.
Diagnoses of work-related respiratory disease, including silicosis, are also reported by treating specialists to the National Occupational Respiratory Disease Registry (NORDR), which the Australian Centre for Disease Control uses to understand how these diseases affect workers nationally and to help shape prevention efforts. This national registry serves a different purpose to any state-based workplace exposure or worker registers, which track who has been exposed on the job rather than confirmed diagnoses.
If you are not currently part of a workplace health monitoring program, perhaps because you have changed jobs or left the industry, speak to your GP about your exposure history so a monitoring or investigation plan can be put in place.
What happens after a silicosis diagnosis
A silicosis diagnosis is a lot to take in, and it is normal to feel worried, angry or unsure of what comes next. While silicosis cannot be cured, treatment and support can help manage symptoms and protect your quality of life, and your treating team will work with you to build a plan suited to your situation.
Explore the options available on our Silicosis Treatment Options page, and if you or someone in your family has just received a diagnosis, our guide on next steps after a silicosis diagnosis can help you understand what to expect.
Take the next step today
Understanding the early symptoms of silicosis only helps if it leads to action. If you have worked with silica dust, whether last month or twenty years ago, do not wait for symptoms to become severe.
Take the Online Risk Assessment to understand your exposure risk. Speak to your GP about your occupational history and whether health monitoring or further tests are right for you. Or contact the ADDRI Silicosis Support Nurse for guidance tailored to your situation.
Frequently Asked Questions
What is usually the first sign of silicosis?
Breathlessness during physical activity is often the first noticeable sign, though many people with silicosis have no symptoms at all in the early stages. This is why health monitoring for people at risk is so important, rather than waiting for symptoms to appear.
Can you have silicosis without any symptoms?
Yes. Most people with silicosis do not experience symptoms in the early stages of the disease. This is why regular health monitoring matters for anyone who has worked with silica dust, even if they feel completely well.
How long does it take for silicosis symptoms to appear?
This depends on the type of silicosis. Chronic silicosis, the most common form, can take ten years or more of exposure to develop and may not cause symptoms for years afterwards. Accelerated silicosis can develop within three to ten years, while acute silicosis can develop within weeks or months following very high exposure.
What is the difference between chronic and accelerated silicosis symptoms?
Chronic silicosis tends to develop and progress slowly, often over many years, following lower level, long term exposure. Accelerated silicosis develops faster and can cause more rapid symptom progression, usually following moderate to high level exposure over a shorter period, generally three to ten years.
How is silicosis diagnosed in Australia?
There is no single test for silicosis. Your GP will take a detailed occupational and medical history and refer you to a respiratory physician if silicosis is suspected. Diagnosis typically involves a high-resolution CT scan, lung function tests and sometimes a chest X-ray or blood tests, reviewed together by the specialist.
Do I need a CT scan or a chest X-ray to diagnose silicosis?
A high-resolution CT scan (HRCT) is currently the most sensitive test for detecting silicosis, especially in its early stages. A chest X-ray may also be used, but it is less likely to pick up early changes. Your respiratory physician will decide which combination of tests is right for you.
To learn more, you can watch our video on Silicosis Symptoms:
https://silicosis.org.au/about-silicosis/silicosis-symptoms/
You do not have to work out what your exposure history means on your own.
References
This information has been sourced and adapted from resources referenced below, as at 26/08/26:
Lung Foundation Australia. Silicosis. lungfoundation.com.au/lung-diseases/occupational-lung-diseases/silicosis/
Lung Foundation Australia. Investigating a possible silicosis diagnosis: What to expect. lungfoundation.com.au/articles/investigating-a-possible-silicosis-diagnosis/
Asbestos and Dust Diseases Research Institute (ADDRI). Silicosis: causes, symptoms and prevention measures. addri.org.au/about-the-diseases/silicosis/
Silicosis Support Hub (ADDRI). About silicosis and silica-related disease. silicosis.org.au/about-silicosis/
Safe Work Australia. Construction WHS duties tool — Dusts, Silica. safeworkaustralia.gov.au/duties-tool/construction/hazards-information/dusts/silica
Australian Centre for Disease Control. National Occupational Respiratory Disease Registry. cdc.gov.au/topics/nordr
Royal Australasian College of Physicians, Faculty of Occupational and Environmental Medicine. Silicosis: Overview. racp.edu.au/policy-and-advocacy/division-faculty-and-chapter-priorities/faculty-of-occupational-environmental-medicine/silicosis/overview
