What is a Follicular Unit?

Follicular unit is a natural grouping of one or more hairs in the scalp. Follicular units also contain sebaceous (oil) glands, arrector pili muscle, and nerves and blood vessels. This can be likened to a family of hair. If you separate a person from his/her family, he may survive but will not be happy. These Follicular units terminal (and occasionally a velus) hair are so close together that it is not feasible to separate them, without compromising the growth.

This is how a follicular unit looks like.

On the left is a two hair unit and on the right is a single hair unit.

So, what is advantage of this follicular architecture?? How does this affect your hair transplant?
I shall discuss this in my next blog.

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