Dandruff is one of the most frequently observed hair problem, characterized by the itching and flaking of the scalp. There are numerous causes of dandruff. Mentioned here are just a few common ones:

• The prime cause of dandruff is found to be a yeast called Pityrosporum Ovale.
  

• One of the most important causes of dandruff is found to be stress or emotional tension. High level of emotional anxiety can exacerbate dandruff problem.
  

• Another common cause is the constant shampooing of hair in hot water. Shampooing in hot water can cause your scalp to lose its natural oils making it dry and flaky.
  

• Just as constant hot water shampooing can cause dandruff, blow drying your hair from very close can also result in dandruff.
  

• Another major cause of hair dandruff may be the high intake of sugar. In line with this, it is a fact that people suffering from diabetes are more prone to dandruff problem.
  

• Dandruff may also result in people who are low on the intake of essential fats.
  

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Dandruff mainly occur with the reasons of overactive oil glands, food allergies, stress, excessive perspiration, or harsh shampoos. Some other kind of symptoms of dandruff get aggravated when exposed to dust, UV light, hair chemical colors, hair dyes etc.