Congenital Canities         ~ exists at or before birth         ~ occurs in albinos         ~ can be patchy

Albino-person born with no coloring matter, resulting in white hair 

Acquired Canities         ~ develops with age          ~ result of genetics.         ~ may develop                   * worry                  * anxiety                  * prolonged illness        

CAUSES OF PREMATURE GRAYING (NON-GENETIC)·      

Thyroid disorders: mainly decrease in thyroid hormones·      Autoimmune associated: Graves disease, Vitiligo, Pernicious Anemia etc·      

Vitamin B12 deficiency·     

 Folate or other mineral deficiencies like Copper·      

Stress and anxiety: major role it plays·      

Smoking: oxidative stress causing free radical damage·     

 Hypertension·     

 Lack of sleep: disturbance of Melatonin hormone levels·    

  Improper or irregular diet·     

 Exposure to external chemicals 

Proper treatment is required by determining underlying etiology and treating accordingly.

Below 25 years age group, Calcium Pantothenate, PABA orally helps along with remelanising topical agents like Melitane etc.