Dandruff is the excessive shedding of dead skin cells from the scalp which can be caused by internal and external causes. Internal causes such as hormonal imbalance, poor health or hygiene, lack of rest and emotional stress or even improper nutrition are likely contributions to the development of dandruff.
Furthermore, external causes such as excessive use of hair sprays, or frequent change in weather and temperature can damage the scalp surface and increase the rate of dandruff. Bacteria are also known to further aggravate the situation, especially in cases where a person has dandruff.
In reality, dandruff is not contagious as it is only dead skin cells however it is possible that for both types of persons with a dry or oily scalp to contract dandruff. |
