What Is Asbestosis?
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Sean Marchese, MS, RN: What Is Asbestosis?

Asbestosis is the term for the disease process that affects the lungs when asbestos fibers are trapped within the lungs for a long period of time and cause scar tissue after long periods of inflammation and irritation. Asbestosis is actually a type of pulmonary fibrosis, which means it's characterized by a large amount of scarring within the lungs. Unfortunately, like pulmonary fibrosis, there aren't great treatment options for this type of scar tissue that begins to develop within the lungs. It's treated symptomatically, which means there are options to reduce the amount of symptoms that a patient has, such as breathing treatments, oxygen, or pain management.

What Is Asbestosis?

Asbestosis is a chronic lung disease that can develop over time after breathing in asbestos fibers that scar and stiffen lung tissue. It’s a form of lung diseases (pulmonary fibrosis and pneumoconiosis) connected to inhaled mineral dust. In 2024, the most recent year in CDC’s mortality data, asbestosis caused 236 deaths in the U.S.

Asbestosis and Cancer Risk

  • Asbestos is a mineral. Inhaling asbestos fibers causes asbestosis, a scarring lung disease. 
  • Asbestosis is a form of pulmonary fibrosis and pneumoconiosis. It’s sometimes informally called “asbestos lung.”
  • Symptoms usually appear 10 to 40 years after initial exposure because the fiber-driven scarring builds slowly. 
  • Asbestosis isn’t cancer. It’s a cancer risk indicator. An asbestosis diagnosis reflects a level of asbestos exposure that also raises the risk of asbestos-related cancers like mesothelioma. 

When your lungs stiffen, your body can’t get enough oxygen. Thickened scar tissue makes it hard for your lungs to transfer oxygen into the blood. This can cause trouble breathing, coughing, chest pain and other conditions.

Asbestosis Symptoms

The first symptoms of asbestosis include a dry cough, difficulty breathing and crackling sounds when breathing. These crackling sounds happen because scar tissues stiffens your lungs. Stiff lungs make it harder for your blood to get enough oxygen, which leads to shortness of breath. Long-term breathing problems and low oxygen cause fatigue and weight loss.

Common Asbestosis Symptoms

  • Chest pain or tightness
  • Clubbing of fingers and toes
  • Crackling sounds when breathing
  • Fatigue
  • Loss of weight and appetite
  • Persistent dry cough
  • Shortness of breath

Registered Nurse and Board-Certified Patient Advocate Karen Selby tells us, “Asbestosis symptoms can be similar to many illnesses or diagnoses. So your physician may not immediately consider it. Because of this, discussing your asbestos exposure history will be important. This will help your physician in ordering appropriate testing quickly.”

Advanced Asbestosis Symptoms

Advanced symptoms of asbestosis include pulmonary hypertension. Scar tissue tightens your arteries, which raises blood pressure because the heart must work harder to pump blood to the lungs.

When your lungs deliver too little oxygen to your blood, a symptom called clubbing can appear. Clubbing makes the tips of the fingers and toes broader and rounder than usual. Some people may develop this symptom early in the disease.

Asbestosis develops faster than asbestos-related cancer. A diagnosis of asbestosis signals a higher risk of lung cancer or mesothelioma in the future.

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What Causes Asbestosis?

The only cause of asbestosis is inhaling asbestos fibers. Asbestosis belongs to a group of lung diseases called pneumoconiosis. These diseases happen when people inhale certain types of dust. For example, inhaling silica dust causes silicosis.

When you inhale asbestos fibers, they accumulate in your lungs. This triggers inflammation and can change lung tissue over time. When scar tissue forms, it limits your lungs’ ability to move and function. The interstitium (fluid-filled spaces around cells and blood vessels), alveoli (tiny air sacs) and nearby tissues become inflamed and scarred.

Asbestosis usually develops after many years of regular exposure to asbestos. Symptoms and diagnosis often appear decades after exposure. The time from first exposure to symptoms or latency period is usually 10 to 40 years for asbestosis. This is shorter than the latency for other asbestos-related illnesses like mesothelioma, which takes 20 to 60 years to develop.

Diagram showing inhaled asbestos fibers lodging in lung tissue and causing the scarring that leads to asbestosis
How inhaled asbestos fibers lodge in lung tissue and drive the scarring that defines asbestosis.

Where Does Asbestos Exposure Occur?

People diagnosed with asbestosis inhaled asbestos fibers at home, at work or in a natural environment, such as an asbestos mine. Common places where exposure happens include construction sites, ships and industrial workplaces. Workers in these settings face a higher risk of developing asbestosis.

Many products made before the 1980s contained asbestos, such as building materials, automotive parts, textiles and some talc products. Although the U.S. no longer mines asbestos or uses it in new residential construction, old buildings still contain legacy asbestos.

You must have regular, prolonged exposure to asbestos to develop pulmonary fibrosis. Experts agree that occasional asbestos exposure may not cause asbestosis. Occupational exposure remains the primary cause of most cases of asbestosis. 

Asbestosis survivor Jerry Cochran tells us his time in the Navy led to an asbestosis diagnosis later in life. He encountered asbestos when he scraped and ground nonskid paint off an aircraft carrier in the early 1970s. He says, “We didn’t have any training or any knowledge of what was happening to us. You were innocent young men, 18 to 19 years old, doing a job.”

Asbestosis Risk Factors

People with occupational asbestos exposure face a higher risk of developing asbestosis. The disease usually develops in people exposed to large amounts of asbestos for long periods. Certain jobs carry a high risk of heavy asbestos exposure. These include military personnel, construction workers, insulators, miners and millers. 

A 2024 study in the Scandinavian Journal of Work, Environment & Health also highlighted pipefitters and metal, oil and shipyard workers as higher risk. Textile mill workers, industrial workers and mechanics face higher risks too. 

Risk Factors for Asbestosis

  • Amount and concentration of asbestos
  • Size, shape and type of asbestos fibers
  • Length of time exposed to asbestos
  • Health factors like smoking or lung disease history
  • Genetic factors or DNA mutations that increase disease risk 

Family members of these workers can get exposed to asbestos fibers when they’re accidentally brought home on clothing, shoes and tools. Secondhand asbestos exposure is known to cause mesothelioma but isn’t as likely to cause asbestosis. Asbestosis usually happens after high amounts of asbestos exposure, mostly from direct workplace contact. 

Asbestosis survivor Jerry Cochran tells us his time in the Navy led to an asbestosis diagnosis later in life. He encountered asbestos when he scraped and ground nonskid paint off an aircraft carrier in the early 1970s. He says, “We didn’t have any training or any knowledge of what was happening to us. You were innocent young men, 18 to 19 years old, doing a job.”

Jerry Cochran in the Navy

Jerry Cochran

Verified Asbestos.com Survivor

Navy Veteran With Asbestosis Has a Passion for Justice

Navy veteran Jerry Cochran developed asbestosis from exposure to asbestos-containing products. His faith and his work advocating for others has kept him going for the past half a century.

Jerry Cochran

Verified Asbestos.com Survivor
Read Jerry’s Story

Diagnosing Asbestosis

Your doctor will review your medical and work history and perform tests to diagnose asbestosis. Radiologists look for lung scarring on chest X-rays, CT scans or both. They confirm your diagnosis when scan results match your history of asbestos exposure. Doctors diagnose asbestosis with a review of your exposure history, imaging scans and breathing tests.

How Doctors Diagnose Asbestosis

  • Exposure history: A documented record of asbestos exposure, often occupational.
  • Chest X-ray: The first imaging step used to spot lung scarring.
  • High-resolution CT scan: HRCT is a detailed scan that shows fibrosis, which an X-ray can miss.
  • Pulmonary function tests: PFTs are breathing tests that measure how much the scarring has reduced lung capacity.

You may have lung tests to check how well your lungs work. Your doctor will use a stethoscope to listen for crackling sounds during breathing. Your doctor may take a lung tissue biopsy to find scarring and asbestos fibers. A biopsy may not be needed if imaging shows scarring, and your history includes asbestos exposure.

Complications of Asbestosis

As asbestosis progresses, the lung scarring can lead to several serious complications. These complications tend to develop gradually as more lung tissue scars over time, and their severity generally tracks with how much asbestos exposure a person had.

Common Complications of Asbestosis

  • Progressive respiratory failure as scarring reduces the lungs’ ability to transfer oxygen into the blood.
  • Pulmonary hypertension, or high blood pressure in the lung arteries, can strain the right side of the heart (a condition called cor pulmonale).
  • Pleural disease, including pleural plaques and thickening of the lining around the lungs.
  • A higher risk of asbestos-related lung cancer and pleural mesothelioma.

Asbestosis does not cause these cancers, but a diagnosis signals a level of asbestos exposure linked to higher cancer risk. Lung cancer is also more common than mesothelioma in people diagnosed with asbestosis. Because of this, doctors typically advise people diagnosed with asbestosis to continue regular chest imaging and lung function monitoring, both to track the disease itself and to catch related conditions early.

Prognosis for Asbestosis

People with asbestosis live an average of about 10 years after diagnosis. Life expectancy changes with the stage of the disease. People in the early stage often live the longest, around 14 years. In the advanced stage, life expectancy drops to about 1.75 years.

How fast the disease progresses and how much asbestos exposure you had affect your outlook. High exposure usually leads to more severe cases that worsen quickly. Lower exposure often means mild cases that progress slowly or stay stable.

No treatment can reverse the lung scarring after asbestos exposure. Only a double lung transplant can stop the disease from getting worse. Asbestosis causes more deaths from pneumoconiosis than any other lung condition. It accounted for about 60% of all pneumoconiosis deaths from 1999 to 2018.

Life Expectancy for Asbestosis Patients
Asbestosis Stage Survival in Months (Years)
Early Stage 14.25 years
Intermediate Stage 4.16 years
Advanced Stage 1.75 years
All Stages Combined 10.3 years

Preventing Asbestosis

Because asbestosis has no cure, preventing asbestos exposure is the most effective protection. Avoiding it altogether isn’t always realistic for people who work in older buildings with legacy asbestos, so OSHA requires employers to provide protective equipment like respirators and engineering controls such as wet methods and HEPA vacuuming that meaningfully cut down how much asbestos actually reaches your lungs.

Ways to Prevent Asbestosis

  • At work, follow asbestos-handling controls and use the proper respiratory protection your employer must provide.
  • At home, don’t disturb suspected asbestos materials in older buildings. Hire licensed abatement professionals for removal.
  • Quit smoking. Smoking doesn’t cause asbestosis, but smoking and asbestos exposure together raise lung-cancer risk far more than either alone.

If you’ve been exposed to asbestos, talk with a doctor about monitoring your lung health over time because asbestosis is incurable, and catching complications early matters. Regular chest imaging and pulmonary function tests are the standard way doctors track lung changes in people with an asbestos exposure history, even years after exposure has ended.

Asbestosis Treatment Options

Asbestosis treatments relieve your symptoms, slow progression and improve your quality of life. Supplemental oxygen from a portable oxygen tank is often necessary if you have reduced lung capacity. Medications can thin lung secretions to make coughing easier and relieve your chest pain. 

Treatments for Asbestosis

  • Lung transplant
  • Medications
  • Physical therapy
  • Pulmonary rehabilitation
  • Smoking cessation
  • Supplemental oxygen

Pulmonary rehabilitation helps people with chronic breathing problems. A team of therapists supports your physical and mental health. Exercise and physical therapy can improve your fitness, lung function and how you feel each day. Physical therapists use percussion and vibration to loosen and clear mucus. Quitting smoking is critical because cigarette smoke worsens symptoms and asbestosis progression.

Lung transplants can stop the disease from worsening in advanced cases. Doctors usually recommend double lung transplants because they offer the best results, but only a few people qualify for this major surgery.

Top Pulmonologists Treating Asbestosis

Working with a pulmonologist who has experience treating asbestosis is key to managing the disease effectively. These specialists understand how asbestosis affects your lungs and can create a personalized care plan. They monitor your lung function, adjust treatments as needed and help manage symptoms to improve your breathing and quality of life.

A top pulmonologist can also connect you with other health professionals such as nutritionists and therapists who support your overall well-being. If you consider complementary therapies or supplements, always discuss them with your pulmonologist first to make sure they’re safe and fit into your treatment plan. This teamwork helps you get the right care and avoid risks.

Dr. Francis D. Sheski

Francis D. Sheski

Pleural Specialist | Pulmonary Critical Care

Expertise:
Interventional Pulmonology Clinical Trials
IU Health University Hospital Indianapolis, Indiana
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Expertise:
Interventional Pulmonology Clinical Trials
IU Health University Hospital
Indianapolis, Indiana
View Profile

Dr. Francis D. Sheski is a pulmonary critical care specialist who has expertise in treating asbestos-related pulmonary conditions such as pleural mesothelioma and asbestosis. He is board-certified in family medicine, internal medicine, critical care and pulmonary medicine.

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Common Questions About Asbestosis

How long can you live with asbestosis?

Asbestosis is a long-term disease, different from mesothelioma. Many people live for decades after diagnosis. Some people face serious breathing problems, and the disease can eventually be deadly.

What is the difference between asbestosis and mesothelioma?

Mesothelioma is a cancer that affects the tissue around the lungs, chest and abdomen. Asbestosis is a chronic lung disease, not cancer. It’s a type of lung scarring called pulmonary fibrosis. Both asbestosis and mesothelioma come from asbestos exposure.

Can asbestosis be cured?

You can live with asbestosis for years, but there is no cure for this progressive condition. Treatments focus on easing symptoms and helping you breathe better. On average, people live about 10 years with asbestosis, but this can vary widely.

What questions should you ask your doctor?
  • How advanced is my condition?
  • What is the best treatment for asbestosis?
  • What medications do you recommend and what are the side effects?
  • How much experience do you have managing asbestosis?
  • Will I need a lung transplant?
  • Am I at risk of developing mesothelioma or lung cancer?
  • Is anyone in my family at risk?
Can you recover from asbestos exposure?

There is no way to reverse asbestosis once it develops, because the lung scarring is permanent. People who have been exposed to asbestos can work with a doctor to monitor their lung health and manage symptoms over time.

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