Cancer is characterized by abnormal cell growth and spread. The document discusses several types of cancer:
- Globally, lung, breast, colorectal, liver and stomach cancers are most common. In India in 2012, the most cases occurred in lung, breast, colorectal, oral and cervical cancers.
- Risk factors vary but include tobacco use, alcohol, viruses, radiation, genetic factors and diet. Prevention focuses on reducing risk exposures, screening and early detection, and treatment.
- For oral cancer, tobacco and alcohol are main risks. India had over 77,000 oral cancer cases in 2012. Prevention emphasizes tobacco control and screening precancerous lesions.
- Cervical cancer disproportion