Hair weaving essentially means the addition of hair to cover baldness or adding hair to one’s natural hair.  The added hair can be human or synthetic.  Human hair is obtained from hair cut from other individuals.  It is then processed and marketed.  Different weaving types commonly prevalent in the market are netting, fusion, bonding, tracking, lace extensions, micro braiding, etc.  One can select the hair type and style.  Hair weave is commonly used for baldness of varying stages.  There are conditions where it remains the only solution vis. a vis. in extensive baldness, alopecia areata totalis, and so on