Asbestos exposure causes both cancers and non-cancerous lung diseases. The cancers include mesothelioma, lung cancer, and cancers of the larynx and ovary, per the National Cancer Institute. The non-malignant diseases include asbestosis, a permanent scarring of the lungs, and changes in the chest lining such as pleural plaques, described by the CDC’s Agency for Toxic Substances and Disease Registry (ATSDR).
The distinction matters medically and legally, because different diseases mean different symptoms, different outlooks, and different claims. This page maps the whole cluster and links to a detailed page on each disease. It is informational only, not medical advice; diagnosis and treatment belong with your doctors.
Which cancers does asbestos cause?
The NCI asbestos fact sheet reports that asbestos is classified as a known human carcinogen and identifies these cancers:
- Pleural mesothelioma: cancer of the lining around the lungs, the most common form of mesothelioma, and the disease most tightly linked to asbestos.
- Peritoneal mesothelioma: mesothelioma of the abdominal lining.
- Asbestos-related lung cancer: cancer of the lung tissue itself, a distinct disease from mesothelioma. The NCI notes that asbestos exposure raises lung cancer risk, and that smoking plus asbestos raises it further still.
- Laryngeal and ovarian cancer: the NCI fact sheet reports established links between asbestos exposure and cancers of the larynx and ovary.
What are the non-malignant asbestos diseases?
Not every asbestos disease is cancer. The ATSDR describes several non-malignant conditions caused by inhaled asbestos fibers:
- Asbestosis: scarring (fibrosis) of the lung tissue itself. It is progressive, has no cure, and causes shortness of breath that can worsen over time.
- Pleural plaques: areas of thickening on the chest lining. ATSDR describes them as the most common sign of past asbestos exposure; many people with plaques have no symptoms.
- Pleural thickening and pleural effusions: broader scarring of the lining, and fluid collecting around the lungs, both documented by ATSDR as asbestos-related changes.
A non-malignant finding is worth taking seriously for two reasons. It confirms that a real exposure happened, and the person carrying it remains at risk for the malignant diseases above, since the same fibers caused both. Anyone with a plaques or asbestosis finding should make sure every future doctor knows their exposure history.
Who is at risk for these diseases?
The same people, for the same reason. Per the NCI, the highest risk falls on workers who mined, milled, made, installed, or removed asbestos products, and on people who worked in shipbuilding, construction, and heavy industry before the late 1970s. The NCI fact sheet also documents household exposure: family members breathed fibers carried home on a worker’s clothes, skin, and hair. Pennsylvania was full of the qualifying workplaces, from the Delaware River shipyards to the Monongahela Valley mills to the rail shops and refineries in between.
Every one of these diseases shares the same long delay. The NCI puts the typical gap between asbestos exposure and mesothelioma at 20 to 50 years, and ATSDR describes a similarly long delay for asbestosis. That is why a diagnosis in 2026 usually traces to a job held in the 1960s or 1970s, and why anyone with that history should keep it in their medical record permanently.
Why does the specific diagnosis matter for a claim?
Because compensation systems sort claims by disease. Mesothelioma and asbestos-related lung cancer claims are generally the most substantial. Asbestosis supports its own claims. Asbestos bankruptcy trust funds, which hold roughly $30 billion set aside for asbestos victims per the U.S. Government Accountability Office (GAO-11-819), publish criteria that differ by disease level. Getting the diagnosis precisely right, with the pathology or imaging to back it, is the foundation under any of these claims.
Can you file a second claim if a cancer comes later?
In Pennsylvania, yes. Pennsylvania follows a separate-disease rule: a person who brought a claim for a non-malignant disease like asbestosis may bring a new, separate claim if an asbestos cancer develops later. The Pennsylvania Superior Court established this in Marinari v. Asbestos Corp. (1992). An asbestosis claim settled in one decade does not close the courthouse door on a mesothelioma diagnosis in the next. The details, and the deadlines that apply to each disease, are covered on our asbestosis page.
What this means for your family
Start from the diagnosis you actually have. If it is mesothelioma or lung cancer, Pennsylvania’s two-year window (42 Pa. C.S. § 5524) is likely already running, and the claim path is well established. If it is asbestosis or pleural disease, there may be a claim now and, under Marinari, a preserved right to a separate claim if cancer ever follows. In every case the evidence that powers the claim is the same: the medical records plus the work history, and both are easier to assemble sooner than later.
Whatever the diagnosis, a short conversation will tell you where it fits. Request a free case review and get a straight answer about your options.