Over the last two decades, the public story of mouth-and-throat cancer has been rewritten around a single word: HPV. News coverage of the human papillomavirus, of a vaccine, and of a wave of throat cancers in otherwise healthy nonsmokers has largely displaced the older, blunter fact — the one the United States government put in writing in the very first Surgeon General's report on smoking. In 1964, that landmark report concluded that cigarette smoking is causally related to cancer of the oral cavity. Sixty years and a shelf of confirming reports later, that has not changed. Cigarettes remain a leading cause of cancers of the mouth and throat — and for a large share of patients, the HPV headlines have nothing to do with why they got sick.
This piece continues the firm's series on the cancers cigarettes cause. It sits beside our guides to laryngeal (voice box) cancer and esophageal cancer — the neighboring structures in the same smoke-exposed corridor — and rounds out the head-and-neck picture that begins with the lungs. Below: what oral and oropharyngeal cancer are and why the anatomy matters, why these cancers sit on the Surgeon General's list, how large the smoking risk really is, the distinctive “two epidemics” that decide which of these cancers cigarettes drive, the twin defenses — it was the drinking and it was the HPV — that tobacco companies raise, and how a smoking-related mouth or throat cancer claim fits the same liability framework the firm uses in its lung cancer, COPD, and other smoking-disease matters.
What Oral and Oropharyngeal Cancer Are
These are cancers of the mouth and the back of the throat, and the line between them is not a technicality — it decides how a case is built. The oral cavity is the mouth proper: the lips, the front two-thirds of the tongue, the floor of the mouth, the gums, the inner lining of the cheeks, and the hard palate. The oropharynx is the middle part of the throat just behind the mouth: the base (back third) of the tongue, the tonsils, the soft palate, and the side and back walls of the throat. The great majority of cancers in both regions are squamous cell carcinomas, arising from the flat cells that line these surfaces — the same cell type, and the same surfaces, that a stream of cigarette smoke passes over thousands of times a day.
Early oral and oropharyngeal cancers can be quiet, or can masquerade as something minor: a mouth sore that will not heal, a white or red patch on the gum or tongue, a lump in the neck, a persistent sore throat, pain or trouble swallowing, a change in the voice, or unexplained loss of a tooth's footing. Because a dentist or hygienist often sees these tissues before a physician does, the dental record can be an early and important part of the medical history in these cases. When a cancer is found late, in a person with a long smoking history, every factor that contributed to it deserves a careful look.
Why Oral and Throat Cancer Are on the Surgeon General's Smoking List
The link between smoking and these cancers is not a plaintiff's theory — it is among the oldest and best-established conclusions in all of tobacco science. The 1964 Surgeon General's report, the report that first told the country smoking causes lung cancer, in the same breath concluded that cigarette smoking is causally related to cancer of the oral cavity. Reports by the U.S. Public Health Service have since established a direct causal relationship between cigarette smoking and cancer of the mouth and throat, and the National Cancer Institute and American Cancer Society both identify tobacco use as a leading cause. All forms of combustible and smokeless tobacco are implicated — cigarettes, pipes, cigars, and chewing tobacco and snuff.
The biology is direct in a way it is not for the more distant organs in this series. The lining of the mouth and throat is not reached by carcinogens carried in the blood from far away — it is bathed in tobacco smoke at the source, on contact, with every inhalation. Cigarette smoke carries dozens of established carcinogens, including polycyclic aromatic hydrocarbons such as benzo[a]pyrene and tobacco-specific nitrosamines, and these compounds settle on and are absorbed by the squamous cells of the lips, tongue, floor of mouth, and throat, damaging their DNA over years of exposure. This is the same carcinogen chemistry the firm describes in its lung cancer and laryngeal cancer cases — here, applied to the first tissues the smoke ever touches.
How Big Is the Smoking Risk?
Large, dose-dependent, and larger still when alcohol enters the picture. The National Cancer Institute states that the risk of oral cavity and oropharyngeal cancers is about 5 to 10 times higher in current smokers than in people who have never smoked, and that the risk is tied to how much and how long a person has smoked — the dose-response gradient epidemiologists rely on to separate genuine causation from coincidence. The following figures come from the National Cancer Institute and the American Cancer Society:
- About 5 to 10 times the risk of oral cavity and oropharyngeal cancer for current smokers compared with never-smokers, per the National Cancer Institute — with the risk rising with the number of cigarettes per day and the number of years smoked.
- About 30 times the risk for people who both smoke and drink heavily, compared with people who neither smoke nor drink, per the American Cancer Society — because tobacco and alcohol multiply each other's effect rather than merely adding to it.
- The risk is dose-related: the more a person smokes and the longer they smoke, the greater the risk — and the excess risk falls after quitting, though it takes many years to approach that of a never-smoker.
- Every form of tobacco is implicated, including smokeless tobacco — long-term snuff and chewing-tobacco use is a recognized cause of cancers of the cheek and gum.
A five-to-tenfold increase, climbing toward thirtyfold in the heavy-smoking, heavy-drinking patient, is not a subtle effect. It places tobacco squarely among the dominant causes of these cancers — a fact that has been settled science since the year the first Surgeon General's report was published.
A Distinctive Fact: The Two Epidemics, and Why Site and HPV Status Matter
Oral and throat cancers carry a feature that sets them apart from most other smoking-disease cases, and it is the very thing the headlines are about. Over the last twenty years these cancers have split into two distinct epidemics. One is the traditional disease — driven by tobacco and alcohol, concentrated in the oral cavity and in HPV-negative throat cancers, typically in older patients with a substantial smoking history. The other is a newer wave of HPV-positive oropharyngeal cancers — centered on the tonsils and base of tongue, appearing in younger patients who often never smoked and did not drink heavily, and carrying a notably better prognosis.
The dividing line runs largely along anatomy. According to the American Cancer Society, HPV DNA is found in about two out of three oropharyngeal cancers — but in a much smaller share of oral cavity cancers. In plain terms: a cancer of the tongue's base or the tonsil in a nonsmoker is often the HPV disease, while a cancer of the floor of the mouth, the gum, the inner cheek, or the front of the tongue in a longtime smoker is the tobacco disease. That is exactly the kind of distinction a general reading of “mouth cancer” would flatten — and exactly the kind that decides whether, and how, a tobacco claim is built.
This is the kind of record where the firm's Medical-Legal Expert earns his place. Herb Borroto, M.D., J.D., who holds both a medical degree and a law degree, reads the pathology and histology reports, the tumor site and staging, the HPV/p16 testing, the dental and clinical history, and the smoking and drinking history together — recognizing when the tumor's location and HPV status point to tobacco rather than to the virus, in a way a purely legal review has no reason to look for and a purely clinical review has no reason to connect to liability.
The Twin Defenses: “It Was the Drinking” and “It Was the HPV”
Because these cancers have more than one recognized cause, expect the tobacco defendants to point at every cause except their product. The two familiar moves are she was a heavy drinker — the alcohol did this and this is an HPV cancer, not a smoking cancer. Both trade on real facts. Both fall short of ending a case.
The alcohol argument actually cuts the wrong way for the defense on the classic tobacco-and-alcohol tumor. Smoking and drinking do not compete to be the cause — they multiply each other, which is why the combined risk reaches roughly thirty times that of a person who does neither. A carcinogen that becomes far more dangerous in combination with another exposure has not been exonerated by that combination; it has been implicated more deeply. In product-liability law, a manufacturer whose product was a substantial contributing factor to an injury does not escape responsibility by naming another factor that also contributed.
The HPV argument is answered by the anatomy described above. HPV drives the tonsil-and-base-of-tongue cancers of the oropharynx; it is found in a much smaller share of oral cavity cancers. Where the tumor sits in the mouth, and whether HPV/p16 testing is positive or negative, are objective facts in the pathology record — and in the smoker whose cancer is HPV-negative or arises in a classic tobacco site, the “it was the HPV” deflection simply does not fit the evidence. This mirrors the “it was just the HPV” defense the firm addresses in its cervical cancer guide — here, with the added tell that the tumor's own location often marks it as the tobacco disease.
The Legal Framework
Smoking-related oral and oropharyngeal cancer cases proceed on the same liability theories as other smoking-disease cases against the tobacco industry:
- Negligent design, manufacture, and marketing of cigarettes.
- Strict product liability for an unreasonably dangerous product.
- Failure to warn about the full range of cancers smoking causes — including the cancers of the mouth and throat named in the very first Surgeon General's report.
- Fraud and misrepresentation about the safety and addictiveness of the products.
- Civil conspiracy among manufacturers to suppress and distort health research.
The internal industry records unearthed in prior tobacco litigation — the documents showing what the companies knew about the harms of their product and when — remain central evidence. Our companion piece on how tobacco companies hid the truth walks through that record. Alex Alvarez, the firm's Managing Partner and a Board Certified Civil Trial Lawyer, brings that documentary history together with each client's own smoking and medical records — including the pathology that marks a cancer as the tobacco disease — to build the causation case a mouth or throat cancer claim requires, and to answer the twin defenses described above.
What an Oral or Throat Cancer Case Needs
- Documentation of the diagnosis — the biopsy or surgical pathology confirming the cancer, the exact site (oral cavity versus oropharynx, and where within it), the cell type, and the staging.
- The HPV/p16 testing result, so an HPV-negative or classic-tobacco-site tumor can be identified as such rather than left for the defense to mischaracterize.
- A substantial smoking history, measured in pack-years, spanning the years the science associates with the disease.
- Brand identification — which cigarettes or tobacco products were used, and for how long.
- The dental and medical history, including any record of alcohol use, so the smoking contribution can be shown alongside the other cofactors rather than against them.
- Causation testimony from an appropriate expert familiar with the smoking–head-and-neck cancer literature.
- Documentation of the disease's impact — the surgery, chemotherapy or radiation, effects on speech, swallowing, and eating, any recurrence, and, in cases brought after a death, the cause-of-death records.
The unglamorous paperwork behind these elements is what carries a case. Our guide to smoking history documentation covers the records that build or break a tobacco claim, and our wrongful death family guide walks through what a family should know when oral or throat cancer has taken a loved one.
The Jurisdictions We Serve
The Alvarez Law Firm represents smokers and families in Hawaii, Illinois, Nevada, Oregon, Pennsylvania, and the U.S. Virgin Islands. Each of those jurisdictions has its own filing deadlines, its own substantive law on tobacco product liability, and its own version of the discovery rule — how long after a diagnosis, or a death, a claim must be filed. Because those deadlines are unforgiving and easy to overlook while a family is absorbed in treatment, talk to counsel licensed in the relevant state about how they apply to your situation. Waiting can foreclose options that were available earlier.
Frequently Asked Questions
Does smoking cause oral and throat cancer?
Yes. The very first Surgeon General's report on smoking, in 1964, concluded that cigarette smoking is causally related to cancer of the oral cavity, and every major authority has reaffirmed it since. The National Cancer Institute states that the risk of oral cavity and oropharyngeal cancers is about 5 to 10 times higher in current smokers than in people who never smoked, and that the risk depends on how much and how long a person has smoked. Smoke from cigarettes, pipes, and cigars carries carcinogens that bathe the lining of the mouth and throat directly with every puff.
How much does smoking raise the risk of oral and throat cancer?
Substantially, and more so when combined with alcohol. The National Cancer Institute puts the risk of oral cavity and oropharyngeal cancers at roughly 5 to 10 times higher for current smokers than for never-smokers, dose-related to the amount and duration of smoking. The American Cancer Society reports that people who both smoke and drink heavily have about 30 times the risk of these cancers compared with people who neither smoke nor drink, because tobacco and alcohol multiply each other's effect rather than simply adding to it.
Can you file an oral cancer lawsuit if drinking or HPV was also involved?
Potentially. Tobacco defendants routinely point to alcohol or to human papillomavirus (HPV) as the “real” cause. But smoking is an independent, recognized cause of oral cavity and oropharyngeal cancer, and product-liability law does not excuse a manufacturer whose product was a substantial contributing factor merely because another factor also played a part. HPV is found in about two-thirds of oropharyngeal cancers but a much smaller share of oral cavity cancers, so tumor site and HPV status matter. A longtime smoker diagnosed with oral or throat cancer, or a family that lost someone to it, should speak with counsel licensed in the relevant state, because every jurisdiction has its own filing deadline.
If You or a Family Member Has Been Diagnosed
If you have a substantial smoking history and have been diagnosed with cancer of the mouth or throat — or your family lost a loved one to it — a free, confidential case review is the right next step. The same conversation that produces a viable lung cancer case can produce a viable oral or oropharyngeal cancer case.
- Read about the firm's neighboring head-and-neck cases: Laryngeal (Voice Box) Cancer and Esophageal Cancer.
- Read about the “it was just the HPV” defense in a related cancer: Smoking and Cervical Cancer.
- Read the wrongful death family guide: Smokers Wrongful Death Family Guide.
- Learn how the industry concealed the harms: How Tobacco Companies Hid the Truth.
Free case review. No fees unless we recover compensation for you.
Sources
- U.S. Surgeon General — "Smoking and Health: Report of the Advisory Committee to the Surgeon General of the Public Health Service" (1964), which concluded that cigarette smoking is causally related to cancer of the oral cavity, and "The Health Consequences of Smoking—50 Years of Progress" (2014). cdc.gov/tobacco/sgr
- National Cancer Institute — "Oral Cavity, Oropharyngeal, Hypopharyngeal, and Laryngeal Cancers Prevention (PDQ)," stating that the risk of oral cavity and oropharyngeal cancers is about 5 to 10 times higher for current smokers than for never-smokers and is dose-related to amount and duration. cancer.gov
- American Cancer Society — "Oral Cavity and Oropharyngeal Cancer Causes, Risk Factors, and Prevention," reporting that people who both smoke and drink heavily have about 30 times the risk of these cancers, that smoking and alcohol multiply each other's effect, and that HPV DNA is found in about two out of three oropharyngeal cancers but a much smaller share of oral cavity cancers. cancer.org
- American Association for Cancer Research — "The Evolving Epidemiology of Oral Cavity and Oropharyngeal Cancers," describing the divergence between HPV-associated oropharyngeal cancers and tobacco-and-alcohol-associated oral cavity and HPV-negative cancers. aacrjournals.org