What is the cause of dandruff?

Dandruff is essentially the white scale of the dead skins that are shed by the scalp from time to time. Dandruff is normal for a person who didn’t shampoo hair for a couple of days or had been exposed to severe weather conditions like extreme hot and humid. But, some people seem to suffer from dandruff perennially.

Causes of dandruff:

The exact reason for dandruff is not yet known, though scientists largely opine in favor of the lack of proper hair care and nourishment as the reason for dandruff. To our understanding and experience the possible reasons for dandruff can be as follows. 

1. Reluctance to hair brush use: You hair needs massage on daily basis. Your reluctance to hair brush use can potentially push your hair towards damage. The early symptom of your hair damage/loss is the dandruff that breeds out of such a situation. You hair brush essentially massages your scalp and the root of the hair. Use your hair brush at least four to five times a day. 
2. Oily skin: You just need normal skin for your proper hair growth and care. But, very few people are lucky like that. Majority of us either have oily or dry skin. Oily skin releases excess oil on the scalp that becomes the breeding ground for skin diseases and fungal infections. A situation like this favors the growth of dandruff. 
3. Dry skin: Dry skin on the other hand by default releases dead skins frequently. People with dry skin are often found struggling with dandruff throughout the year.
4. Growth of yeast and other fungus: Funguses like yeast and malassezia are found on the human scalp. They usually don’t create any problem. But, they can grow up exponentially at times, if you don’t keep your scalp free from excess oil, dust and other micro particles on daily basis. Excess growth of these fungi can cause dandruff. 
5. Irregular shampooing: Irregular shampooing is conducive to the growth of dandruff. Shampoo essentially cleanses your hair and its root alongside the scalp. Shampoo your hair on regular basis based on your actual requirement. You are however the best judge here based on your origin country and its weather condition.
6. Dementia: Dementia too can favor dandruff growth. Alzheimer’s disease for instance is known to cause dandruff in view of progressive cell degeneration. 
7. High stress: People working in high stress jobs such as IT (Information Technology), marketing and sales are very often at the risk of dandruff. High stress always associates with the imbalances in secretion of necessary hormones and others. This favors dandruff formation on their heads. Moreover, people in marketing and sales are to do a lot of field work and it very often exposes them to dust, hot and humid conditions. People in marketing and sales therefore quite often suffer from dandruff.
8. Diseases that affect skin: Treat your skin disease prior to initiating treatment for dandruff. Skin diseases favor the dandruff growth.

We are still not done in our pursuit for finding reasons that favor dandruff growth. There can be many more reasons that contribute to its growth.