In the United States, lung cancer is the third most frequent type of cancer. As it is Lung Cancer Awareness Month 2025, it’s important that we acknowledge the detriment of this and understand more about this serious topic. Lung cancer develops when cells in the lungs grow uncontrollably, which can be caused by genetic mutations or environmental factors like smoking.
Thankfully, in recent years, the number of lung cancer mortality has significantly decreased due to advancements in therapy. So, let’s take a look at what all lung cancer entails and how you can keep yourself healthy.
What Is Lung Cancer?
Despite there being two types of lung cancer, both are caused by uncontrolled cell division in the lungs. Your cells naturally divide and replicate themselves. However, they may experience alterations (mutations) that cause them to continue producing more of themselves when they should not. Damaged cells divide uncontrolled, forming lumps, or tumors, of tissue that eventually prevents your organs from functioning normally.
Understanding lung cancer awareness also involves knowing that lung cancer refers to tumors that originate in the lungs, typically in the airways (bronchi or bronchioles) or small air sacs (alveoli). Cancers that begin in other areas and spread to your lungs are typically termed after their origin and referred to as lung cancer pain areas.
Lung Cancer Staging
- Stage 0 (in-situ): Cancer is found in the upper lining of the lung or bronchus at Stage 0 (in-situ). It has not spread to other areas of the lung or outside of the lung.
- Stage I: Cancer has not progressed beyond the lung.
- Stage II: Cancer is larger than Stage I, has spread to lymph nodes within the lung, or there are many tumors in the same lobe of the lung.
- Stage III: Cancer is larger than stage II, has spread to neighboring lymph nodes or structures, or has many tumors in separate lobes of the same lung.
- Stage IV: Cancer has spread to the other lung, the fluid around the lung, the fluid surrounding the heart, or distant organs.
Participating in lung cancer awareness campaigns can help individuals understand these stages better and take proactive measures for early detection and treatment.
What is Adenocarcinoma of the Lung?
Adenocarcinoma of the lung is a subtype of non-small cell lung cancer (NSCLC). The appearance of the cancer cells under a microscope determines whether they are lung adenocarcinoma. Lung adenocarcinoma begins in glandular cells that secrete mucus and spreads to smaller airways, such as alveoli. It is generally found on the outer borders of the lungs and grows more slowly than other lung cancers.
Adenocarcinoma of the lung represents 40% of all lung cancers. It is more prevalent in women. Younger persons (aged 20-46) who have lung cancer are more likely to have lung adenocarcinoma than other types. Adenocarcinoma of the lung makes up the majority of lung cancer in non-smokers.
The Signs and Symptoms Of Lung Cancer
The majority of signs and symptoms of lung cancer resemble other, less serious ailments. Many people do not experience early symptoms of lung cancer until the disease has progressed, while some experience them early on. Stage 1 lung cancer symptoms will have mild symptoms but may gradually get worse.
Those who have signs and symptoms of lung cancer may just have one or a few of the following:
- A cough that persists or worsens over time
- Dyspnea is a condition characterized by difficulty breathing
- Chest pain or discomfort
- Wheezing
- Hemoptysis, or coughing up blood
- Hoarseness
- Loss of appetite
- Unexplained weight loss
- Fatigue without a known cause
- Shoulder ache
- Swelling in the face, neck, arms, and upper chest (superior vena cava syndrome)
Horner’s syndrome is characterized by a small pupil and drooping eyelid in one eye, as well as little or no sweating on that side of the face.
Recognizing these symptoms through lung cancer awareness programs can encourage individuals to seek medical advice sooner.
What Causes Lung Cancer?
Lung cancer is caused by cells that continue to divide when they shouldn’t. While cell division is a normal process, all cells have an on/off switch that prevents them from dividing into more cells (senescence) or causes them to die (apoptosis) when needed. When a cell divides too many times or undergoes too many mutations, the off switch is triggered.
Cancer cells are normal cells in your body that have developed mutations that disable the off switch. They continue to expand unregulated, interfering with your regular cells. Cancer cells can enter your circulation or lymph nodes and spread throughout your body, causing damage.
We don’t know what causes these changes that lead to cancer in some people but not others, but some variables, such as smoking tobacco products, can increase your chance of cell damage, which can lead to lung cancer. It is crucial for smokers to understand the smoking and lung cancer connection.
Promoting lung cancer awareness can help educate people about the risks, such as smoking tobacco products, and the importance of preventive measures.
How Is Lung Cancer Diagnosed?
A lung cancer diagnosis might involve several steps. During your first visit to a healthcare provider, they will normally listen to your symptoms, ask about your medical history, and perform a physical exam. Because the signs and symptoms of lung cancer are similar to those of many other, more prevalent conditions, your doctor may begin by ordering blood tests and a chest X-ray.
If your provider suspects you have lung cancer, your following steps in diagnosis will usually include more imaging tests, such as a CT scan, followed by a biopsy. Other tests include a PET/CT scan to assess whether cancer has spread, as well as testing of malignant tissue obtained from a biopsy to help select the best course of treatment.
Educational efforts during lung cancer awareness campaigns often highlight the importance of early diagnosis through tests like CT scans and biopsies.
How Is Lung Cancer Treated?
Treatments for lung cancer aim to eliminate or slow the spread of cancer in your body. They can eliminate malignant cells, help destroy or prevent them from proliferating, and train your immune system to fight them. Some treatments are also used to alleviate symptoms and pain areas in the body. Your therapy will be determined by the types of lung cancer, its location, the extent of its spread, and a variety of other factors.
Surgery
Surgery is often considered for NSCLC that has not spread or for SCLC limited to a single tumor, as it offers the chance to remove the cancer. Surgeons may extract the tumor along with a small margin of healthy tissue around it. More extensive cases, however, require removing part or the whole lung. This reduces the risk of recurrence.
Radiofrequency ablation
Radiofrequency ablation (RFA) is sometimes used to treat NSCLC cancers on the lungs’ outer borders. Radiofrequency ablation (RFA) heats and destroys cancer cells.
Radiation Therapy
Radiation kills cancer cells by using high-energy beams. It can be taken alone or in conjunction with surgery to improve its efficacy. Radiation can also be used for palliative care, shrinking tumors and alleviating discomfort. It’s utilized for both NSCLC and SCLC.
Chemotherapy
Chemotherapy is frequently a mixture of several medications used to prevent cancer cells from proliferating. It can be administered before or after surgery, or in combination with other medications such as immunotherapy. Chemotherapy for lung cancer is commonly administered via an IV.
Targeted Medication Therapy
In certain individuals with NSCLC, lung cancer cells have unique modifications (mutations) that promote cancer growth. Special medications target these alterations in an attempt to delay or eliminate cancer cells. Other medications, known as angiogenesis inhibitors, can prevent the tumor from developing new blood arteries, which cancer cells require to thrive.
Immunotherapy
Our bodies normally recognize damaged or dangerous cells and kill them. Cancer has ways of hiding from the immune system in order to avoid being killed. Immunotherapy exposes cancer cells to your immune system, allowing your own body to fight cancer.
Treatments to Relieve Symptoms (Palliative Care)
Some lung cancer treatments aim to alleviate symptoms such as pain and trouble breathing. These include treatments to decrease or eliminate tumors that are obstructing your airways, as well as procedures to remove and prevent fluid in the lungs due to cancer.
How Can I Prevent Lung Cancer?
Since we don’t know for certain what causes most malignancies, the only preventative actions are aimed at lowering your lung cancer risk factors.
Here are some strategies to lower your risk:
- Do not smoke, or quit if you already do. Within five years of stopping, your risk of developing lung cancer decreases.
- Avoid secondhand smoke and other lung-damaging chemicals.
- Maintain a healthy diet and weight. According to several research, eating fruits and vegetables (two to six and a half cups per day) may help reduce your lung cancer risk factors.
- If you have a high chance of developing lung cancer, get screened.
Lung Cancer Screening
Screening tests can help you detect cancer in its early stages. If you meet the following criteria, you are eligible for lung cancer screening:
- You are aged between 50 and 80.
- You either smoke or have stopped smoking during the last 15 years.
- You have a 20-pack-year smoking history (the amount of packs per day multiplied by the number of years smoked).
Increasing lung cancer awareness about these preventive measures can empower individuals to reduce their risks effectively.
How Do I Take Care Of Myself?
Self-care is an essential component of cancer care. Here are some ways you can care for yourself while undergoing or recuperating from treatment:
- Bring a friend or family member with you to appointments whenever possible. They can assist you in staying organized with the information and options provided by your provider.
- Prepare in advance for how you will feel in the days following therapy. This could involve asking for extra help, preparing meals ahead of time, or keeping a light schedule.
- Even if you are not feeling well, ask your provider about getting sufficient nutrition. Drink plenty of fluids to remain hydrated. Exercise as much as possible and as directed by your healthcare physician.
- Keeping crucial phone numbers handy. You may encounter multiple suppliers, and it is useful to know who to contact if problems arise.
- Consider joining a support group, whether local or online. Being with people who have been where you are might help you gain perspective and understand what to expect.
Conclusion
A lung cancer diagnosis can trigger a wide range of emotions. Sometimes the amount of new information about lung cancer awareness might be overwhelming. It’s crucial to note that statistics cannot predict how your treatment will go or what recommendations are best for your individual case.
Enlisting the assistance of trusted family members or a support group can help you weigh your options and provide support through this difficult time. While cancer treatment is an ongoing process, understanding lung cancer awareness, knowing your options, reaching out, and caring for yourself can make this journey much more manageable.
FAQ’s on Lung Cancer
What are the early warning signs and symptoms of lung cancer?
- Coughing
- Shortness of breath
- Weight loss
- Chest pain
- Weight loss
- Wheezing
- Infections
- Bone pain
How is lung cancer diagnosed?
The types of lung cancer are caused by cells that continue to divide when they shouldn’t. While cell division is a normal process, all cells have an on/off switch that prevents them from dividing into more cells (senescence) or causes them to die (apoptosis) when needed.
What are the most common types of lung cancer?
The two main types of lung cancer are non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC).
Can non-smokers get lung cancer, and why?
Yes, non-smokers can get lung cancer.
How can I reduce my risk of lung cancer?
- Avoid smoking
- Test your home for radon
- Protect yourself from carcinogens
- Eat a healthy diet
- Be physically active
- Talk to your doctor
What is the lung cancer survival rate by stage?
Here is a rundown of non-small cell lung cancer vs. small cell lung cancer survival rate:
Non-small cell lung cancer
The 5-year net survival rates for non-small cell lung cancer are:
- Stage 1 Lung Cancer Survival Rate: 62%
- Stage 2 Lung Cancer Survival Rate: 39%
- Stage 3 Lung Cancer Survival Rate: 16%
- Stage 4 Lung Cancer Survival Rate: 3%
Small cell lung cancer
The 5-year survival rates for small cell lung cancer are:
- Regionalized: 19.0%
- Distant: 3.9%
- Unstaged/Unknown: 11.1%
What treatments are available for advanced-stage lung cancer?
- Surgery
- Chemotherapy
- Radiation therapy
- Targeted therapy
- Immunotherapy
- Photodynamic therapy (PDT)
Can Vaping Cause Lung Cancer?
Ingredients used in vapes can cause lung disease, as well as cardiovascular (heart) disease. E-cigarettes also contain acrolein, a herbicide primarily used to kill weeds. It can cause acute lung injury and COPD and may cause asthma and lung cancer.
