Asbestos exposure causes lung cancer, not only mesothelioma. The National Cancer Institute reports that asbestos exposure increases the risk of lung cancer, and that the combination of asbestos exposure and cigarette smoking increases that risk more than either factor alone. That last point is the one that matters most to families who assume smoking closes the door. It does not automatically close it.
This page is legal-first with sourced medical background. It is informational only, not medical advice, and it is not a prediction about any individual case; treatment decisions belong with your care team.
What does the science say about asbestos and lung cancer?
The NCI asbestos fact sheet identifies asbestos as a known human carcinogen and lists lung cancer among the cancers it causes. The American Cancer Society reaches the same conclusion in its own review of asbestos, noting that studies of asbestos-exposed workers show increased lung cancer risk and that the risk rises with the amount and duration of exposure.
On the interaction with smoking, both authorities are specific: the risk in people who both smoked and were exposed to asbestos is greater than adding the two risks together, a relationship the NCI describes directly. In other words, asbestos does not become irrelevant because someone smoked. Medically, asbestos contributed more in smokers, not less.
Can you file a lawsuit for lung cancer if you smoked?
A smoking history does not automatically bar an asbestos lung cancer claim in Pennsylvania. What it does is make the case a fought case. Defendants will argue that cigarettes caused the cancer and asbestos did not, and the claim turns on evidence: the documented exposure history, the intensity and duration of that exposure, the medical opinion linking asbestos to this cancer, and often imaging findings such as asbestosis or pleural changes that show the lungs actually took an asbestos burden.
Two honest caveats. Some claims fail. And asbestos bankruptcy trust funds, which hold roughly $30 billion set aside for asbestos victims per the U.S. Government Accountability Office (GAO-11-819), each publish their own medical and exposure criteria for lung cancer claims, and some impose additional requirements on claimants with a smoking history. Nobody can tell you your case will succeed. What a lawyer can tell you, after reviewing the records, is whether the evidence supports a claim worth bringing. Do not decide that yourself based on an assumption about smoking.
What evidence makes an asbestos lung cancer case?
These cases are built from four things:
- The diagnosis: the pathology report identifying the lung cancer and its type.
- The exposure history: employers, job sites, trades, dates, and the specific asbestos products involved. Work records, union records, Social Security earnings records, and co-worker testimony all feed this.
- Supporting medical findings: imaging or pathology showing asbestos-related changes in the lungs or chest lining, when present.
- Medical causation opinion: a qualified physician’s opinion connecting the asbestos exposure to this cancer.
Our asbestos exposure guide covers the settings where these exposures happened across Pennsylvania: steel mills, shipyards, refineries, rail shops, power plants, and construction trades.
What are the symptoms of lung cancer?
Per the American Cancer Society, common signs include a cough that does not go away or gets worse, chest pain, coughing up blood, hoarseness, shortness of breath, weight loss and loss of appetite, and repeated lung infections such as bronchitis or pneumonia. The ACS notes that most lung cancers do not cause symptoms until they have spread, which is part of why the disease is often found late. Anyone with an asbestos work history should tell their doctor about it when these symptoms appear, because that history changes what a careful physician looks for and which imaging they order.
How is asbestos lung cancer different from mesothelioma?
They are separate diseases. Lung cancer grows in the lung tissue itself; mesothelioma grows in the lining around the lung, as described on our pleural mesothelioma page. The legal difference is causation. Mesothelioma is so specifically tied to asbestos that the link is rarely disputed. Lung cancer has other well-established causes, above all smoking, so an asbestos lung cancer claim has to prove the asbestos connection rather than assume it. That is a difference in the work required, not a bar to recovery. The full disease cluster, malignant and non-malignant, is mapped on the asbestos diseases hub.
What this means for your family
If lung cancer has been diagnosed in someone with an asbestos work history, get the case looked at rather than assuming smoking ends the conversation. Pennsylvania generally allows two years from discovery of the disease to file (42 Pa. C.S. § 5524), and if the person has already passed away, Pennsylvania provides wrongful death and survival actions for the family (42 Pa. C.S. §§ 8301-8302). Reviewing an asbestos lung cancer file costs you nothing and takes a lawyer, not a family, to evaluate honestly.
Michael C. Schafle, Esq. handles asbestos cases in the Philadelphia asbestos docket (In re: Asbestos Litigation, No. 1986-00001). Request a free case review and get a straight assessment of whether the evidence supports a claim.