Cancer treatment often uses either chemotherapy or radiation to cure or kill cancer cells. The aim of these drugs is to quickly destroy rapidly dividing cancer cells or to delay their growth. Unfortunately, they also kill healthy cells that also divide rapidly, such as the cells in our hair follicles that make our hair grow. This is why chemotherapy causes hair loss. It often happens weeks after the treatment. Most of the patients get scared seeing their hair falling off from the scalps if this is not shaven off. Thats the reason why medics usually shave off patients head.
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