Most common of all is the standard male pattern of baldness and the female pattern of baldness. A single hair generally lasts 2-6 years, and is then replaced by a new hair. Remember that it is normal to lose as much as 100 hairs a day. Once the hair follicle dies, it never again produces hair. But there are instances in which the follicle has not died, but only has stopped producing hair.
Careful treatment restores hair growth.
Localized hair loss could also be caused by scarring following a wound or an operation. A nourishing diet should be eaten daily. A significant cause of baldness is the use of hair dyes. Another is using hot air dryers. Hair loss in women most often occurs after menopause.