What are the causes of alopecia

What causes excessive hair loss?

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In the first case of "normal" hair loss, the daily hair a person loses, this is a completely natural process which ends in a daily healthy portion of hair shedding of 40-110 hair strands per 24 hours, being strongly influenced by life style and genetic predisposition to hair loss and baldness. This hair loss process is normal even if we do not like it.
Hair is constantly produced in the follicle matrix and it pushes the existing strand upwards.
The "dead" hair strand has to fall in order to make room for the newly produced one.
Therefore what we see when we shower is the product of normal hair loss.

However, there are several cases when this daily hair loss can become quite significant.
In this case it is important to pay attention to several factors that DO influence hair loss negatively:

- follicular inflammation due to bio-chemical interaction at cellular level, around the papilla and follicle;
- excessive vitamin A intake, in a dosage higher than five times than the recommended daily intake of 800 micrograms; it is well documented that retinol acetate in high concentration, for a prolonged period of time will lead to the regression of the follicle to a dormant state.
However, this can be easily reversed by reducing or stopping the intake of vitamin A;
- serious lack of iron produces anemia which, in time, leads to hair loss due to lack of nutrients; women that gave birth experience iron lack first hand and as result temporary hair loss after pregnancy due to the hormonal imbalance that is created after separation of the newly born child;
- Hypo- or Hyperthyroidism, Hypopituitarism, Hypoparathyroidism are conditions that
lead to severe malfunction of the endocrine glands, thus producing too low or too high hormonal levels;
- drug-induced conditions such as those produced by contraceptives, like for instance induced hormonal imbalance, strong or large-spectrum antibiotics administered for a long period of time, as well as those conditions induced by anticoagulants;
- constant or extremely high stress;
- chemotherapy and/or radiation therapy;

If you are interested in in-depth information about hair loss please visit this specialized site.