User:Hairloss45

The loss of hair 抜け毛 (alopecia) is a normal phenomenon in all hair-baring animals that normally takes place during the hair growth routine. It is estimated that most individuals (presuming they have a full locks) lose about 100 scalp hairs over a 24-hour period. Hair loss can become a cosmetic problem when it occurs within the wrong place at the wrong time in the incorrect individual. True baldness should be distinguished from damage to the hair shaft, which may cause damage close to the scalp. This kind of damage is most often due to exogenous chemicals used to affect the physical characteristics with the hair shaft (head of hair dye, etc.), but certain genetic diseases can alter its durability and strength.