What is the main cause of cancer?

Step-by-step solution

In cancer cells, there is a breakdown of the regulatory mechanisms that control cell growth and differentiation in our body. This is the main cause of cancer. Malignant tumors are a mass of proliferating cells that grow rapidly, invading and damaging the surrounding normal tissues. They also compete for vital nutrients, leading to damage and starvation of normal cells.Normal cells show a property called contact inhibition, which means that contact with other cells inhibits their uncontrolled growth. Cancer cells ha