Lung cancer is the most common type of cancer and a leading cause of death, especially among the elderly. Its initial symptoms are often vague, leading to delayed diagnosis and significantly reduced survival chances. Recognizing early signs, even minor ones, is key to effective treatment.
Doctor Indoo Ammbulkar, a medical oncologist at HCG Cancer Centre in India, emphasized, "When detected early, treatment is more effective, and symptoms can be managed with minimal impact on overall health."
Here are five warning signs you should never ignore:
Persistent cough or changes in cough characteristics
While a cough is common, a persistent cough without a clear reason is a dangerous sign. Doctor Ammbulkar noted that if a cough lasts longer than two to three weeks, it could indicate a serious issue.
According to data from Cancer Research UK, approximately 0.2% of individuals with a chronic cough lasting over three weeks are diagnosed with lung cancer. Pay particular attention if the cough is accompanied by phlegm or becomes more painful.
![]() |
Illustration of a lung cancer tumor. Photo: Johnson & Johnson |
Shortness of breath or wheezing
If you feel breathless during activities that are typically easy, such as climbing stairs, exercise caution. Lung tumors can obstruct airways or cause pneumonia, leading to difficulty breathing. Doctor Rashmi Tarachandani warned that any change in breathing patterns requires immediate medical examination to determine if there is an airway obstruction or lung damage.
Body aches (chest, back, shoulder)
Chronic pain in the chest, back, or shoulder is often mistaken for signs of aging or overexertion. However, as a tumor grows, lymph nodes can swell, or cancer cells may invade surrounding tissues, causing pain. Doctor Tarachandani advised that increasing pain, especially at night, signals an urgent need for medical evaluation.
Persistent hoarseness
A change in voice not caused by a cold or excessive shouting is an alarm bell. Lung tumors can press on the nerves that control the vocal cords. If hoarseness persists, you should undergo an endoscopy or lung examination to rule out serious problems.
Sudden weight loss
Unexplained weight loss (losing more than 5% of body weight in a short period) is a common sign of many cancers, including lung cancer. Doctor Ammbulkar explained, "Cancer cells can alter metabolism and how the body uses energy, leading to weight loss that cannot be explained by diet or exercise."
While anyone can develop lung cancer, experts recommend regular screening for the following groups:
- Individuals aged 55 to 74.
- Individuals who currently smoke or have quit within the last 15 years.
- Individuals with a history of heavy smoking.
My Y (According to Hindustan Times)
