How does cancer cells really grow ?????

Acancer cell is produced in your body when a cell's DNA gets corrupted; this is a mutation. The body normally shuts  down or eliminates this mutated cell by a process called apoptosis but sometimes the cell replicates so quickly that it couldn't be eliminated and this is cancer. The cell rapidly divides with infinite supply of telomere's and therefore can keep replicating without a stop. Normally these cells are taken out by a surgery if they are grown only in a single part of the body. Radiation therapy can also used when only one part of an organ is damaged. The radiation is given from an external source and with great accuracy. Therefore, radiation is used to eliminate only cancer cells while leaving out the healthy tissue. Sometimes the cancer cells travel out of the mutated region and into the blood capillaries. Then, these cancer cells  circulate and start growing in another organ. At this stage, chemotherapy is used, which are drugs that travels all over the body killing the cancer cells throughout the whole body. Chemotherapy drugs identify cancer cells by their ability to rapid reproduce. Therefore chemotherapy kills hair cells, digestive tract cells and any other type that have the ability to rapidly reproduce. Therefore, hair loss is a common side effect.

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