Cancer is caused by abnormal growth of cells. Abnormal cell growth may occur in anywhere in the body.
There is no continuous division and growth of abnormal cells that lead to the cancer. Cancer cells disturb the functioning of the body parts.
Cancer may be of two types: Benign and malignant. In benign tumours, the cancer cells remain localized to one place and
they do not spread to other parts of the body whereas in malignant tumours the cancerous cells reach to different parts of the body.
Cancer cells may travel through blood or lymphatic system to affect other body parts.
Different types of cancer have different causes. There is a normal cycle of cell growth but when there is a disturbance in the cell growth cycle,
there is formation of group of cells that accumulate at one place and may lead to cancer.
Genetic predisposition is an important cause for cancer. There are some genes that lead to the formation of cancer cells.
People who smoke may suffer from cancer of the lungs. Tobacco chewing may cause mouth cancer.
Alcohol drinking is the main cause of liver cancer. Women mainly suffer from cervical cancer. Therefore, different types of cancer
are caused by specific causes.
By Dr. Yograj
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