Picture of hair follicle with and without hair

A hair follicle is the sac where hair growth begins.

ByHealthwise Staff
Primary Medical Reviewer Adam Husney, MD - Family Medicine
Specialist Medical Reviewer E. Gregory Thompson, MD - Internal Medicine

Current as ofFebruary 20, 2015

Current as of: February 20, 2015

Author: Healthwise Staff

Medical Review: Adam Husney, MD - Family Medicine & E. Gregory Thompson, MD - Internal Medicine