Dandruff have become very common. It arises from the dead cells located in the skin of our head. Dandruff causes hair loss and itching problems.
Medical Definition of Hair loss. Hair loss: Hair loss is the thinning of hair on the scalp. ... The most common form of hair loss occurs gradually and is referred to as "androgenetic alopecia," meaning that a combination of hormones (androgens are male hormones) and heredity (genetics) is needed to develop the condition.