What is systematical reason for hair loss into scalp ?

Hair loss or alopecia can result from a number of causes, ranging from the commonest androgenetic baldness through severe systemic illness to hair loss because of anticancer treatment. The treatment will obviously differ according to cause which needs to elucidated in every case before an individualized management strategy can be devised. The common types are discussed below.





Male Pattern Baldness (Androgenetic Alopecia)


This is by far the commonest cause of hair thinning and loss in adult males. The condition runs in families and has a strong genetic component to its causation. It is believed to be related to an excess of male hormones in the body (Androgens).





The hair starts thinning usually around the age of twelve, but it may be delayed up to the age of 40. Up to 50 % of the population may have experienced some degree of hair loss before entering into the 6th decade of their life.





The main abnormality in this type of hair loss is a more rapid cycle of hair growth. The hair follicles become smaller and the hair is shorter and thinner. They are shed earlier than normal, giving rise to a sparser and lighter growth.





The presentation can be extremely varied and can range from simply a receding hair line, to loss off hair from the crown and temples, to complete baldness. Very thin scanty filaments may be the only thing that is left in severe cases.





Female-pattern Baldness


It is rarer than the male counterpart, but differs in it appearance and presentation. Thinning of hair is more severe on the front, the temples and at the top. Some hair is generally present at the hair line despite patches of extensive baldness in rest of the scalp.





Alopecia Areata


It is an immunologically mediated disease which affects roughly 2% of the population, without any gender bias. Children and young adults are affected more commonly. The disease manifests as small rounded to oval patches of subtotal to total hair loss. It can affect of the hairy skin of any part of the body including scalp.





The hair follicles remain alive in this condition, and there is always a hope. The hair generally grows back, but such spontaneous remissions may come in months to years.





What is systematical reason for hair loss into scalp ?
The blood vessels die at the hair roots because of no oxygen causing you to loose the hair. Mostly it is generic reason by your dad and his dad and so forth.