How do cancers start?

Answered by 1 Apollo Doctors

Dr Dhankecha Dineshbhai

General Practitioner

MBBS
6+ Yrs

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The cause of cancer is multifactorial such as genetics, environmental and lifestyle. Cancer develops when the body's normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new abnormal cells which may form a mass of tissue called a tumor.

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Answered 04/07/2025

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What is Cancer?
Cancer is the uncontrolled growth of abnormal cells in the body.
How Normal Cells Work
Normal cells grow, divide, and die in a regulated manner.
Genetic Changes Leading to Cancer
Mutations in DNA can cause cells to grow uncontrollably.
Factors Causing These Changes
Common causes include smoking, radiation, infections, and inherited genes.
How Cancer Starts
Mutated cells multiply and can form tumors.
Role of the Immune System
The body usually fights abnormal cells, but sometimes it fails.
Importance of Early Detection
Early detection improves treatment outcomes.
When to Consult a Specialist
Seek medical advice if symptoms or risks are present.

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