About 95% of men’s hair loss can be accounted for by Androgenetic alopecia, which is caused by heredity, hormones and age. While the major factor for hair loss is genetic and can come from either side of a family, many other factors can also contribute to the process.
Scalp hair growth follows a repetitive three phase cycle, the longest of which is the growing phase of between two to ﬁve years. About 87% of the hairs are continually in this phase.
About 1% of the hairs are constantly in a transitory phase of around two weeks during which the roots shorten and shrink. The remaining 12% are in a resting phase of non-growth which usually lasts for about three months.
There are three main types of hair loss: temporary hair loss in a patch in the shape of a coin is known as alopecia areata, – temporary hair loss due to a stressor on the system is termed telogen efﬂuvium, while male pattern hair loss is called androgenetic alopecia.
Yes, male pattern hair loss can start as early as 15, although it usually starts between the twenties and early thirties. Alopecia areata and telogen efﬂuvium which are forms of temporary hair loss can occur even in very young children.
Stress does not cause hair loss, but can contribute to the process. For example telogen Efﬂuvium, which is a temporary loss of hair, occurs through stressors on the system.
The most common cause is pregnancy, which can frequently lead to temporary for a few months after the birth of the baby. However, the hair will return completely.
System stressors such as illness, fever, pregnancy, extreme weight change and drug use can cause temporary hair loss. Full regrowth can be conﬁdently expected.
Yes, aggressive hair dyes and straighteners can cause scalp inﬂammation and resultant loss of hair. Allergic reaction to ingredients contained in shampoos and conditioners can also lead to hair loss.
Yes, extreme hairstyles involving tight braids can cause hair loss known as traction alopecia.
Does wearing a hat cause loss of hair?. . .
No, so long as the hat is not so tight that it restricts blood circulation, it will not cause hair loss.