This type of hair loss occurs due to autoimmune reaction in the body, where cells of the body fight with each other. Alopecia Areata is very common all over the world, in which a person finds hair loss in patches. Mostly, people who develop more patches of hair loss feel low in self-esteem and get very stressed. If not treated earlier, Alopecia Areata progresses to Alopecia Totalis (whole scalp hair undergoes hair loss) and further to Alopecia Universalis (Major causes of Alopecia Areata are genetic disposition of autoimmune disorders, unexpected stress or sudden shock, Vit D deficiency, viral infections or harsh chemicals on hair & scalp. Each and every individual personality is different, so treatment plans could differ according to case history.