Lung Cancer

111. Lung cancer early symptoms, causes, and treatment


Lung cancer self diagnosis

  1. Cough and phlegm for no apparent reason persist for more than 1-2 weeks.
  2. My throat is hoarse often and does not get better easily.
  3. When I cough, phlegm or bloody sputum often comes out.
  4. I feel short of breath and make a ‘wheezing’ sound when I breathe.
  5. Symptoms of headache, chest pain, back pain, and stiff shoulders are severe.
  6. Severe swelling of the face or neck.
  7. The skin color of the entire body turns black.
  8. There is no appetite and weight loss.
  9. Nausea and vomiting have become more frequent.
  10. I have broken my ribs for no reason.

If three or more of these apply, it is best to visit a hospital and receive treatment.



Lung cancer is a serious and often life-threatening condition that affects millions of people worldwide. In this comprehensive guide, we will explore the various aspects of lung cancer, including its definition, causes, symptoms, management, treatment options, self-care strategies, beneficial exercises, dietary recommendations, foods to avoid, and preventive measures.



What Is Lung Cancer?

Lung cancer is a malignant tumor that originates in the lungs. It occurs when abnormal cells in the lung begin to grow uncontrollably, forming a mass or tumor. There are two main types of lung cancer: small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC). NSCLC is the more common type, accounting for approximately 85% of all lung cancer cases.


Causes of Lung Cancer

Lung cancer is primarily caused by exposure to carcinogens, with cigarette smoke being the most significant risk factor. Other factors that can contribute to lung cancer include:


  • Radon Gas: Prolonged exposure to radon, a naturally occurring radioactive gas, can increase the risk of lung cancer.
  • Occupational Exposures: Some jobs, such as asbestos mining or construction, involve exposure to harmful substances that can lead to lung cancer.
  • Family History: Individuals with a family history of lung cancer may have a higher risk.
  • Air Pollution: Prolonged exposure to high levels of air pollution can also be a risk factor.

Early Symptoms of Lung Cancer

Early detection of lung cancer is crucial for successful treatment. Common symptoms to be aware of include:


  • Persistent Cough: A persistent cough that doesn’t go away or worsens over time.
  • Chest Pain: Chest pain that is constant and often aggravated by coughing or breathing deeply.
  • Coughing Up Blood: Coughing up blood or rust-colored sputum.
  • Unexplained Weight Loss: Significant and unexplained weight loss.
  • Shortness of Breath: Breathlessness or wheezing, even with minimal exertion.

It’s essential to consult a doctor if you experience any of these symptoms, especially if you are at risk for lung cancer.


Lung Cancer Staging

Lung cancer is staged to determine the extent of the disease and guide treatment decisions. The stages range from 0 (localized cancer) to IV (advanced cancer that has spread to other parts of the body). Staging helps doctors plan the most appropriate treatment.


Lung Cancer Treatment

The choice of lung cancer treatment depends on the type and stage of cancer. Treatment options may include:


  • Surgery: Surgical removal of the tumor or affected lung tissue.
  • Chemotherapy: The use of drugs to kill cancer cells.
  • Radiation Therapy: High-energy radiation to destroy cancer cells.
  • Targeted Therapy: Medications that target specific genetic mutations in cancer cells.
  • Immunotherapy: Boosting the body’s immune system to fight cancer.
  • The doctor will determine the most suitable treatment plan for each patient.


Self-Care and Coping Strategies

A lung cancer diagnosis can be emotionally and physically challenging. Coping strategies include seeking support from loved ones, joining support groups, and considering counseling or therapy to help manage the emotional impact.


Metastasis rate, survival rate, and tumor size in lung cancer


medical doctor give consultation patient with xray film 2


Lung cancer metastasis rate (Staging):


1. Stage 1 Lung Cancer:

  • The tumor is small and limited within the lung.
  • There are many cases where there is little or very subtle metastasis.
  • Prognosis (5-year survival rate): Most patients have a high survival rate with a possible cure.

2. Stage 2 Lung Cancer:

  • The tumor may be large within the lung or may have small spreads to nearby lymph nodes.
  • Prognosis (5-year survival rate): If you respond to treatment, your survival rate may still be high but slightly lower.

3. Stage 3 Lung Cancer:

  • The tumor may spread to nearby lymph nodes or infiltrate surrounding tissues.
  • Prognosis (5-year survival rate): Survival rate is low and varies depending on tumor size and extent of spread.

4. Stage 4 Lung Cancer:

  • The tumor has spread outside the lungs or to other organs (such as the liver or brain).
  • Prognosis (5-year survival rate): Stage 4 lung cancer is generally difficult to treat and has a very low survival rate.

Lung cancer survival rate (5-year survival rate):


  • Stage 1 lung cancer: May have a 5-year survival rate of approximately 60% or higher.
  • Stage 2 lung cancer: A 5-year survival rate of approximately 40-50% is reported.
  • Stage 3 lung cancer: Survival rate drops to approximately 20-30%.
  • Stage 4 lung cancer: Survival rates are very low, usually less than 5%.

Lung cancer tumor size:


The size of a lung cancer tumor is measured through the diameter of the tumor. Tumor size is generally classified as:


  • T1: less than 3cm
  • T2: From 3cm to 7cm
  • T3: From 7cm to 5cm
  • T4: More than 5cm or surrounding tissue invasion

This evaluation helps determine how large the tumor is and to what extent it has invaded surrounding tissue. The size of the tumor may affect treatment and prognosis.


Beneficial Exercises

While the type and intensity of exercise should be discussed with a doctor, activities like walking, swimming, and gentle yoga can improve lung capacity and overall well-being for some lung cancer patients.


Foods to eat and foods to avoid for lung health

Choosing the right diet is important to maintain and improve lung health. Below we will learn about foods that are good for your lungs and foods you should avoid.


Foods that may help:


salad 791643 640 2


  • Vegetables and Fruits: Fresh vegetables and fruits are rich in antioxidants and vitamins that support lung health. Oranges, papaya, broccoli, carrots, and spinach are especially good choices.
  • Dietary Fiber: High-fiber foods improve bronchial and lung function and help remove mucus. Sweet potatoes, oats, black beans, and grains are rich in dietary fiber.
  • Omega-3 fatty acids: Omega-3 fatty acids may support lung health and reduce inflammation. Salmon, dried almonds, shrimp, and mackerel contain omega-3s.
  • Vitamin D: Vitamin D may support lung health and can be obtained from ostrich mushrooms, salmon, and milk.

Foods to avoid:


  • Cigarettes and Smoking: Smoking is one of the biggest risk factors for lung health. You should avoid smoking or passibe smoking with smokers.
  • Processed Foods: Processed foods contain high fat, sugar, and salt, which can harm lung health. It is recommended to avoid fast food and excessive snacks.
  • Saturated fat: Foods high in saturated fat can be harmful to your health, so you should limit high-fat meats and fatty dairy products.
  • Excessive alcohol: Excessive alcohol consumption can damage lung health, so alcohol should be consumed in moderation.
  • Starchers, sweets and drinks: Excessive sugar consumption can cause obesity and negatively affect lung health, so limit sweets, candies and sugary drinks.

non smoker 2367409 640 2



While not all cases of lung cancer are preventable, you can reduce your risk by:

  • Avoiding Tobacco: If you smoke, seek help to quit. Avoid secondhand smoke exposure.
  • Radon Testing: Check your home for radon levels, and take steps to reduce exposure if necessary.
  • Occupational Safety: If your job involves exposure to carcinogens, follow safety protocols and wear protective equipment.
  • Healthy Lifestyle: Maintain a healthy weight, exercise regularly, and eat a balanced diet.


Lung cancer is a complex condition with various risk factors and treatment options. Early detection and comprehensive medical care are crucial for improving outcomes. If you or a loved one is at risk or experiencing symptoms, consult a doctor promptly.



Q: What is the survival rate for lung cancer?
A: The survival rate varies significantly depending on the stage at diagnosis. Overall, the five-year survival rate for lung cancer is around 21%.


Q: Is lung cancer only caused by smoking?
A: While smoking is the leading cause of lung cancer, non-smokers can also develop the disease due to other risk factors like radon exposure or genetic predisposition.


Q: Can lung cancer be cured?
A: The outcome depends on the stage at diagnosis and the type of lung cancer. While some cases can be cured, others may be managed with long-term treatments.


Q: What are the risk factors for lung cancer?
A: Risk factors include smoking, radon exposure, occupational hazards, family history, and air pollution.


Q: Are there any alternative treatments for lung cancer?
A: Complementary therapies like acupuncture or meditation may help manage symptoms but should not replace standard medical treatments.


Q: Can lung cancer metastasize to other parts of the body?
A: Yes, lung cancer can metastasize, meaning it can spread to other organs such as the liver, bones, or brain. Early detection is essential to prevent or manage metastasis.


Q: Is there a difference in survival rates between small cell lung cancer and non-small cell lung cancer?
A: Yes, generally, small cell lung cancer (SCLC) is more aggressive and has a lower overall survival rate compared to non-small cell lung cancer (NSCLC). However, both types can vary in terms of prognosis depending on the stage at diagnosis.


Q: How is lung cancer diagnosed?
A: Lung cancer is typically diagnosed through a combination of imaging tests (like CT scans), biopsies, and other diagnostic procedures. A doctor will determine the most appropriate diagnostic approach based on the patient’s symptoms and medical history.


Q: Can lung cancer be prevented entirely?
A: While not all cases of lung cancer can be prevented, adopting a healthy lifestyle, avoiding tobacco and carcinogen exposure, and regular check-ups with a doctor can significantly reduce the risk.


Q: Are there support resources for lung cancer patients and their families?
A: Yes, many organizations and support groups offer resources, counseling, and information for lung cancer patients and their loved ones. Your doctor or healthcare provider can help you find these resources.


Today’s Quiz

Q: What is the most significant risk factor for lung cancer?
A: The most significant risk factor for lung cancer is smoking tobacco products.


Accuracy : 95%.



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