Traction Alopecia: hair shafts are extracted from their host follicles due to tight hair styling techniques e.g. pony tails, top knots, hair extensions, chignons, pleats, plaiting, tracks, cornrowing etc. Hair follicles do not tolerate these traumatic potentially injurious activities well and many are destroyed thereby. Needless to say this can cause significant regions of permanent baldness.
Sites affected: anywhere, however the the anterior and occipital margins, parietals and auriculars are frequently seen areas of such needless injury.
THE TRICHOLOGICAL SOCIETY