Understanding Cancer

What it is, how it works, and why it matters.

What Is Cancer ?

Cancer is a group of diseases where abnormal cells grow and spread in the body. These cells don’t behave like healthy ones, they divide uncontrollably and may form tumors or invade nearby tissues.
Not all cancers are the same, and not all tumors are cancer. That’s why understanding the basics is a powerful first step in managing the disease.

How Does Cancer Start ?

How Does

Cancer Start ?

Cancer often begins when changes (mutations) happen in a cell’s DNA. These changes affect how a cell grows, divides, and dies, which can lead to uncontrolled growth.

These mutations can be caused by:

Smoking
or tobacco use

Harmful
chemicals

Radiation or sun
damage

Certain infections
(like HPV or hepatitis)

Inherited gene mutations
(family history)

Types of Cancer Cells

There are many types of cancer, but most fall into these categories:

Next Step

You don’t need to become an expert, but having a clear understanding helps you stay one step ahead.