Cancer

Abstract

A group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body, is known as cancer. Majority (90-95%) of cancers are due to environmental factors. Remaining (5-10%) is due to inherited factors. Most of the cancers can be recognized at early stage due to the appearance of signs and symptoms or through screening. Investigations include blood tests, X-rays, CT scans, endoscopy and biopsy. Some cancers can be prevented by avoiding risk factors as tobacco chewing, obesity, physical inactivity, alcohol intake and sexually transmitted diseases etc.