Stages of hair loss
I posted an answer to a new question on Realself.com
This article was written by Dr. Jeff Donovan, a Canadian and US board certified dermatologist specializing exclusively in hair loss.
Share This
I posted an answer to a new question on Realself.com
I posted an answer to a new question on Realself.com
I posted an answer to a new question on Realself.com
I posted an answer to a new question on Realself.com
Hair casts or 'pseudonits' are thin, elongated, cylindrical concretions that encircle the hair shaft. Hair casts range in size from 2-7 mm and can be easily dislodged. Hair casts can be easily differentiated from "knits" because they slide along hairs when grabbed with the fingers. They are usually asymptomatic and particularly common in young women.
Casts have not been extensively studied, however, one study of over 3500 women showed that casts were seen in 60 % of women. Traction hairstyles, use of hair sprays and a variety of inflammation scalp conditions are associated with hair casts. They are not infectious or contagious.
Reference
Zhang W. Epidemiological and aetiological studies on hair casts. Clin Exp Dermatol. 1995;20:202-7.
I posted an answer to a new question on Realself.com
I posted an answer to a new question on Realself.com
Hair casts are cylindrical (tubular) material that sometimes surround hair follicles. Hair casts are said to be "primary" in nature when not associated with an underlying scalp disorder and "secondary" when associated with an underlying disorder. Many inflammatory conditions can be associated with hair casts including seborrheic dermatitis, psoriasis, pityriasis amiantacea, traction ... and others. The patient in this photo has hair casts from seborrheic dermatitis.
I posted an answer to a new question on Realself.com
I posted an answer to a new question on Realself.com
I posted an answer to a new question on Realself.com
Minoxidil and BP
I posted an answer to a new question on Realself.com
Finasteride and Shedding
I posted an answer to a new question on Realself.com
I posted an answer to a new question on Realself.com
Can taking Saw Palmetto be as effective as taking finasteride for female pattern hair loss?
I posted an answer to a new question on Realself.com
I posted an answer to a new question on Realself.com
I posted an answer to a new question on Realself.com
There are many changes that occur in men and women with androgenetic alopecia, both in male and female thinning. Under the dermatoscope, there are various sizes of hair follicles that can be seen. Some are thick and some are thin. We term this phenomenon "anisotrichosis." In addition hairs emerge from their follicle openings in groups of 1 and 2 hairs rather than the original configuration of 3 and 4 hairs.
A number of other dermatoscopic findings are present including one shown here - the so called "brown peripilar sign" or BPPS.
The BPPS is an early and somewhat specific finding in people with AGA. It is associated with inflammation under the scalp (in the upper hair follicle known as the isthmus and infundibulum).
