What is cancerWhat is cancer

Cancer can start in any part of the body. When cells become more uncontrollable than normal cells.These abnormal cells are termed cancer cells, malignant cells, or tumor cells. These cells can infiltrate normal body tissues.it is a life-threatening illness. patients are having cancer not immediately cured because their symptoms are delayed.it is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.Many cancers and the abnormal cells that compose the cancer tissue and and each is classified by the type of cell that is initially affected. for example Bladder cancer,Lung cancer,Brain cancer,Melanoma,Breast cancer,Cervical cancer,Ovarian cancer etc.There are over 200 different types of cancer.We have the following most viewed cancer.

Most recently viewed types of cancer

  • Bladder cancer
  • Lung cancer
  • Brain cancer
  • Melanoma
  • Breast cancer
  • Cervical cancer
  • Ovarian cancer
  • Colorectal cancer
  • Pancreatic cancer
  • Esophageal cancer
  • Prostate cancer
  • Kidney cancer
  • Skin cancer
  • Leukemia
  • Thyroid cancer
  • Liver cancer
  • Uterine cancer

Also ReadCauses of breast cancer: risk factor, and treatment

How does cancer start

More than around 600,000 people die of cancer, and more than 1.5 million people are diagnosed with cancer per year in the US and many more in all across the world.Cancer results from the breakdown of the controls that regulate cells. These controls all originate from the genetic plans in a cell’s DNA. Therefore, a mistake or change in a cell’s DNA code would cause problems with the cell’s control system. A mutation is a change in the normal DNA code. A mutation can be spontaneous or caused by outside factors. Mutations can have large effects on the cell or no effect at all.

An initiator, however, does not immediately cause cancer. The mutated cell needs the continuous action of a promoter to turn into cancer. A promoter is a non-carcinogenic substance that when applied repeatedly, amplifies cancer-inducing effects of the initiator. They induce the proliferation (reproduction) of the cell, giving rise to a large number of daughter cells containing the mutation created by the initiator. At this point, the mass of mutated cells is usually a benign tumor.

  • How does a tumor turn into a cancer : The promoter causes cells to divide at an abnormally fast rate. When cells divide this fast, the probability that additional mutations or mistakes in DNA replication will occur greatly increases. Eventually, so many mutations have occurred that the growth of the cells in the tumor becomes completely unregulated. The term progression is used to describe the transformation of a benign tumor into a malignancy (a cancerous tumor).


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