Recognizing the early signs and symptoms of lung cancer is of utmost importance for early detection and effective treatment. Lung cancer is a serious condition that has a significant impact on a person’s health and well-being. While smoking remains the leading cause of lung cancer, it’s essential to note that non-smokers can also develop this disease.

In this blog, we will explore the common early signs and symptoms of lung cancer that everyone should be vigilant about. The best oncologist in Kolkata said that early recognition and timely intervention make a substantial difference in the journey towards successful lung cancer management and improved quality of life.

Warning signs indicating you might have lung cancer 

In most cases, patients do not experience any symptoms in the initial stage. One of the lung cancer doctors in Kolkata lists the warning signs that indicate you might have developed lung cancer. 

Persistent cough: A chronic cough that lasts for several weeks or worsens over time can be a potential indication of lung cancer. Pay attention if the cough produces blood or rust-coloured phlegm.

Shortness of breath: If you experience breathlessness or difficulty in breathing, especially while doing activities, it could be a symptom of lung cancer. This occurs when tumours block or narrow the airways.

Chest pain: Lung cancer can cause chest pain that may feel sharp, dull, or constant. The pain may worsen with deep breathing, coughing, or laughing.

Unexplained weight loss: Sudden weight loss, particularly if it is significant and unintentional, can be a warning sign of various cancers, including lung cancer.

Fatigue and weakness: Feeling constantly tired and lacking energy, even after getting enough rest, can be associated with lung cancer. Cancer-related fatigue is different from normal tiredness and may not improve with rest.

Hoarseness and voice change: If you notice persistent hoarseness or a significant change in your voice, it could be a symptom of lung cancer. Tumours in the lungs can affect the vocal cords or recurrent laryngeal nerves.

Coughing up blood: Coughing up blood, even in small amounts should never be ignored. It can indicate various respiratory conditions, including lung cancer, suggested by the best cancer doctor in Kolkata

If you experience any persistent or concerning symptoms, it is crucial to consult the best oncologist in Kolkata for a thorough evaluation and proper diagnosis. Early detection and timely intervention play a crucial role in improving lung cancer outcomes.

Risk factors of lung cancer 

The risks of lung cancer can be influenced by various factors. Here are some key factors that increase the risk of developing lung cancer, says the best lung cancer doctor in Kolkata.

Smoking: The most significant risk factor for lung cancer is tobacco smoking. Cigarettes, cigar and exposure to passive smoking significantly increase the chances of developing lung cancer.

Air Pollution: Long-term exposure to high levels of air pollution, including particulate matter, increases the risk of developing lung cancer especially in urban areas with poor air quality.

Family History: Individuals with a family history of lung cancer have a higher chance of developing the disease. Genetic factors and inherited gene mutations contribute to increased susceptibility.

Exposure to Carcinogens: Certain occupations involve exposure to carcinogens, such as asbestos, arsenic, diesel exhaust, coal products and some chemicals. Prolonged exposure to these substances can elevate the risk of developing lung cancer.


Even if you are diagnosed with lung cancer, there is nothing to fear. It is possible to fight against lung cancer through early detection and effective treatment strategies.

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