When issues occur during cell division and cells begin to excessively reproduce, cancerous tumours can be formed that can then grow and spread across different organs and areas of the body.

When issues are encountered during cell division, the growth of cancer cells becomes uncontrollable and tumours can be formed. Malignant tumours are cancerous and they can break apart to spread cancer throughout the body, whilst benign tumours are not deemed as cancerous because they do not spread. It is predicted that 50% of the population will develop some form of cancer within their lifetime. 

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