Laryngeal cancer stage II represents an early phase of cancer in the voice box where the tumor has grown beyond a single area but remains confined to the larynx without spreading to lymph nodes or distant organs.
Understanding Stage II Laryngeal Cancer
Stage II laryngeal cancer is a specific phase in the development of cancer that affects the larynx, which is the voice box located in your throat. The larynx plays essential roles in helping you breathe, speak, and swallow, and it contains the vocal cords that vibrate to produce sound. When cancer reaches stage II, it means the disease has progressed beyond the earliest stage but has not yet spread to lymph nodes or other parts of the body.[1]
The exact definition of stage II depends on where the cancer started within the larynx. The voice box has three main parts: the supraglottis (the upper part above the vocal cords), the glottis (the middle part where the vocal cords are located), and the subglottis (the lower part below the vocal cords). Each region has slightly different characteristics when cancer develops there, which affects how doctors describe and treat stage II disease.[5]
For cancer that starts above the vocal cords in the supraglottis, stage II means the tumor has grown into the vocal cords themselves, and these cords may not move normally anymore. When cancer begins in the vocal cords, stage II indicates the tumor has spread into either the upper part of the larynx, the lower part, or both areas, and again, the vocal cords don’t move as they should. If the cancer originates below the vocal cords in the subglottis, stage II means it has grown into the vocal cords, which may or may not be able to move normally.[1][8]
What makes stage II distinct from more advanced stages is that the cancer hasn’t spread to nearby lymph nodes in the neck, and it hasn’t traveled to other organs or distant parts of the body. This containment within the larynx generally means better treatment options and outcomes compared to later stages.[12]
How Common is Laryngeal Cancer
Laryngeal cancer is part of a larger group of head and neck cancers that affect structures in the throat and surrounding areas. Every year, approximately 12,500 people in the United States receive a diagnosis of laryngeal cancer. While this number may seem significant, it’s considered relatively uncommon compared to other cancers. About 4,000 people die from this disease annually in the U.S.[3]
The disease shows clear patterns in who it affects most frequently. Men are about five times more likely to develop laryngeal cancer than women. This gender difference may be partly explained by higher rates of smoking and heavy alcohol consumption among men historically, though these patterns are changing over time. The disease typically affects older adults, with most cases occurring in people age 55 and older.[3]
It’s worth noting that stage I and stage II laryngeal cancers together are sometimes referred to as “early stage” disease. However, many laryngeal cancers are actually discovered at more advanced stages, which makes early detection efforts particularly important. When cancer is found at stage II rather than stage III or IV, patients generally have more treatment choices available and better chances of successful outcomes.[1]
What Causes Laryngeal Cancer
Laryngeal cancer develops when cells in the larynx begin to change and grow out of control. These abnormal cells multiply and can invade nearby tissues, damaging the body’s normal structures and functions. Most laryngeal cancers form in squamous cells, which are the thin, flat cells that line the inside of the larynx.[5]
One known cause of laryngeal cancer is infection with certain types of HPV (human papillomavirus), which is a sexually transmitted infection. Some strains of HPV can cause changes in cells that lead to cancer development over time. However, not all laryngeal cancers are linked to HPV infection.[3]
The exact mechanisms by which normal laryngeal cells transform into cancer cells involve complex changes at the cellular and genetic level. These changes can accumulate over many years, often influenced by repeated exposure to harmful substances or conditions that damage the cells’ DNA. When enough damage occurs, cells lose their normal controls on growth and division, leading to the formation of tumors.[5]
Risk Factors for Developing Laryngeal Cancer
The strongest risk factors for laryngeal cancer are behaviors and exposures that repeatedly damage the cells of the larynx. Smoking or using other tobacco products greatly increases your risk of developing this cancer. Every form of tobacco use—whether cigarettes, cigars, pipes, or chewing tobacco—exposes the larynx to harmful chemicals that can cause cellular damage over time.[3]
Drinking alcohol, especially in large amounts (more than one drink daily), also raises your risk of laryngeal cancer. What makes this particularly concerning is that using alcohol and tobacco together increases your risk even more than either substance alone. The combination appears to have a multiplying effect rather than simply adding to the risk, making it especially dangerous.[3]
Age is another important factor, with laryngeal cancer occurring more frequently in people age 55 and older. This likely reflects the years of accumulated exposure to risk factors and the time it takes for cellular changes to develop into cancer. Your sex also plays a role, as men are significantly more likely to develop the disease than women, possibly because historically more men have been heavy tobacco and alcohol users.[3]
If you’ve had head and neck cancer before, you face a higher risk of developing laryngeal cancer. About 1 in 4 people who have had head and neck cancer will develop it again, either in the same location or a different area. This increased risk may be due to continued exposure to the same risk factors or to genetic susceptibilities that made cancer more likely in the first place.[3]
Certain workplace exposures also increase risk. People who work with specific harmful substances face higher chances of developing laryngeal cancer. These substances include sulfuric acid mist, wood dust, nickel, asbestos, or chemicals used in manufacturing mustard gas. People who work with machines are also at higher risk, possibly due to exposure to industrial fumes or other workplace hazards.[3]
Symptoms of Stage II Laryngeal Cancer
The symptoms of stage II laryngeal cancer can be easy to mistake for other, less serious conditions, which sometimes delays diagnosis. The most common symptom is hoarseness or voice changes that don’t improve after a few weeks. Many people initially think this is just a sign of a cold or from straining their voice, but when it persists beyond two weeks, it warrants medical attention.[3]
A sore throat or cough that doesn’t go away is another frequent symptom. While everyone experiences sore throats from time to time, usually from colds or flu, a persistent sore throat that lasts for weeks without improvement could indicate something more serious. Similarly, a chronic cough that isn’t associated with seasonal illnesses or allergies should be evaluated by a healthcare provider.[5]
Some people experience pain or other difficulties when swallowing. This might feel like food getting stuck, a sensation of something being in the throat, or actual pain during swallowing. Ear pain can also occur, even though the cancer is in the larynx. This happens because nerves connect these areas, so problems in the throat can cause pain that feels like it’s coming from the ear.[3]
You might notice a lump in your neck or throat that you can feel from the outside. Changes in your voice beyond just hoarseness can occur, including difficulty making voice sounds, which doctors call dysphonia. Some people find their voice becomes weaker or sounds different than usual.[3]
There are more urgent symptoms that require immediate medical attention. Trouble breathing, called dyspnea, is serious and shouldn’t be ignored. If your breathing becomes noisy and high-pitched, a condition called stridor, this indicates significant airway narrowing. The feeling that something is stuck in your throat, known as globus sensation, or coughing up blood, called hemoptysis, are both reasons to seek medical care right away.[3]
Preventing Laryngeal Cancer
While not all cases of laryngeal cancer can be prevented, you can take important steps to reduce your risk significantly. The most impactful action you can take is to avoid tobacco in all forms. If you currently smoke or use other tobacco products, quitting is the single most important thing you can do to lower your risk. Even people who have used tobacco for many years can benefit from quitting, as the risk begins to decrease over time after stopping.[5]
Limiting alcohol consumption is another key prevention strategy. If you choose to drink alcohol, doing so in moderation—no more than one drink per day—helps reduce your risk. Avoiding the combination of heavy alcohol use and tobacco use is especially important, as this combination dramatically increases cancer risk.[5]
For people who work in environments where they’re exposed to harmful substances like wood dust, asbestos, nickel, or chemical fumes, using proper protective equipment is essential. Following workplace safety guidelines, wearing appropriate masks or respirators, and ensuring good ventilation can help minimize exposure to cancer-causing substances.[3]
Being aware of your risk for HPV infection and taking steps to prevent it may also help reduce laryngeal cancer risk. While vaccines are available for certain HPV types, they’re most effective when given before sexual activity begins. Practicing safer sex and limiting the number of sexual partners can also reduce HPV transmission risk.[3]
Regular dental and medical check-ups provide opportunities for healthcare providers to examine your mouth and throat. While there isn’t a specific screening test for laryngeal cancer in people without symptoms, being attentive to persistent changes in your voice, throat, or swallowing habits and reporting them promptly to your doctor enables earlier detection when treatment is most likely to be successful.[5]
How Laryngeal Cancer Affects the Body
Understanding what happens in the body when stage II laryngeal cancer develops helps explain why certain symptoms occur and why treatment is necessary. The larynx normally serves three critical functions: it protects your airway when you swallow, it produces sound for speaking, and it allows air to pass through to your lungs when you breathe. When cancer develops, all of these functions can be affected.[5]
In stage II disease, the tumor has grown large enough or in a location that affects how the vocal cords move. The vocal cords are two bands of tissue that vibrate when air passes between them, creating sound. When cancer involves these cords or the areas around them, they may not be able to move normally. This restricted movement explains why voice changes are such a common symptom—the cords can’t vibrate properly to produce clear, normal sound.[1]
As the tumor grows within the larynx, it can create a physical obstruction that makes swallowing difficult or painful. Food and liquids normally pass through the throat and around the larynx on their way to the esophagus. When a tumor is present, it can narrow this pathway or make the tissues sensitive, causing discomfort. The tumor can also affect the nerve signals that coordinate swallowing, making this normally automatic process become difficult.[5]
The persistent cough that many people with laryngeal cancer experience happens because the tumor irritates the lining of the larynx. Your body tries to clear this irritation by coughing, but since the tumor remains, the cough continues. Similarly, the feeling of something being stuck in the throat reflects the physical presence of the tumor and the body’s awareness that something abnormal is there.[3]
At the cellular level, cancer cells in the larynx are growing and dividing much faster than normal cells. They don’t die when they should, and they accumulate to form tumors. These cancer cells don’t function like normal laryngeal cells—they don’t help with breathing, swallowing, or speaking. Instead, they crowd out healthy tissue and disrupt normal functions. In stage II disease, this process is still relatively contained within the larynx itself, but the tumor has grown enough to cause noticeable problems with how the voice box works.[5]
The body’s immune system tries to fight the cancer cells, but cancer cells have ways of evading immune detection or suppressing immune responses. This is why cancer can continue to grow despite the body’s natural defenses. The goal of treatment is to remove or destroy these cancer cells before they can spread beyond the larynx to lymph nodes or other organs, where they become much harder to treat successfully.[12]