Cancer Awareness: Doctors say these 10 things are the biggest causes of cancer, don’t make these mistakes even by mistake
- bySudha Saxena
- 10 Feb, 2026
Cancer is the second most serious disease in the world, in which abnormal cells multiply rapidly to form tumors and damage healthy cells. The main causes include tobacco, alcohol, betel nut, red meat, reheated food, barbecued food, hot…
Cancer is the second most serious disease worldwide, claiming millions of lives. It occurs when abnormal cells in the body begin to grow rapidly. These cells damage normal, healthy cells and can spread to other parts of the body, forming tumors.
Different types of cancer can be caused by different factors, but our daily habits and diet can contribute to them. According to surgical oncologists, certain factors increase the risk of cancer.
The main causes of cancer
- Tobacco and smoking – considered the biggest cause of cancer.
- Excessive alcohol consumption – This increases the risk of many types of cancer.
3. Betel nut – Betel nut, which is often chewed, contains cancer-causing elements.
- Red Meat – Consuming red meat in excess can be harmful for health.
- Repeatedly reheated food – When food is reheated repeatedly, harmful substances can form in it.
- Chard or barbecue food – This can also create cancer causing elements in the body.
- Hot beverages – Consuming very hot tea or coffee can also be harmful.
- Aflatoxins – Harmful mold compounds found in spoiled nuts, grains, or other foods.
- Artificial Colors – Chemicals used to color food can increase the risk of cancer.
- Processed Meat – Excessive consumption of processed meat like sausages, hot dogs can be harmful.
Common symptoms of cancer
Early detection of cancer is crucial. Some of its early signs are:
Fatigue – Constant feeling of weakness and tiredness in the body.
Lump formation – the sudden appearance of a lump on or under the skin.
Change in skin colour – skin appears pale or red.
Changes in bowel movements – Sudden changes in bowel or urination habits.
Mole or wart – Sudden appearance of a new mole or wart, which is unusual in size.
Change in voice – Change in voice or problem like air coming out.
Bleeding or bruising – Unexplained bruising or scratching.
Risk factors
some people have a higher risk of cancer. These include:
Age – People aged 65 years and above.
Smoking and alcohol consumption – regular users.
Family history – If someone in the family has had cancer before.
Exposure to harmful chemicals – People affected by chemicals, pesticides or industrial chemicals.




