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Grooved
hair
Hey dude! Do you have groovy hair? Grooved hair has one or more
grooves running for part or all of the hair fiber length. The hair
fiber is structurally sound and strong with a normal cuticle. With
just one groove the hair has a quarter moon cross section shape.
With two grooves it may have an hour glass cross section shape,
and with three or more grooves the cross section is more star shaped.
A few grooved fibers can be found in almost all individuals with
healthy hair. However, an increased number of grooved hairs are
found in such conditions as trichothiodystrophy, pili torti, woolly
hair, uncombable hair syndrome, argininosuccinase deficiency, and
ectodermal dysplasias. There is no treatment for grooved hair. Given
the hair fiber generally maintains its strength, grooved hair is
little cause for concern unless it is a diagnostic marker for another
hair defect disease.
Grooved
hair references
- Lalevic-Vasic
BM, Nikolic MM, Polic DJ, Radosavljevic B. Diffuse partial woolly
hair. Dermatology. 1993;187(4):243-7.
- Rest EB,
Fretzin DF. Quantitative assessment of scanning electron microscope
defects in uncombable-hair syndrome. Pediatr Dermatol. 1990 Jun;7(2):93-6.
- Matis WL,
Baden H, Green R, Boiko S, Lucky AW, Hornstein L, Ashraf M, Hood
AF. Uncombable-hair syndrome. Pediatr Dermatol. 1987 Nov;4(3):215-9.
- Mallon
E, Dawber RP, De Berker D, Ferguson DJ. Cheveux incoiffables--diagnostic,
clinical and hair microscopic findings, and pathogenic studies.
Br J Dermatol. 1994 Nov;131(5):608-14.
- Trueb RM,
Tsambaos D, Spycher MA, Muller J, Burg G. Scarring folliculitis
in the ectrodactyly-ectodermal dysplasia-clefting syndrome. Histologic,
scanning electron-microscopic and biophysical studies of hair.
Dermatology. 1997;194(2):191-4.
- Kvedar JC, Baden
HP, Baden LA, Shih VE, Kolodny EH. Dietary management reverses
grooving and abnormal polarization of hair shafts in argininosuccinase
deficiency. Am J Med Genet. 1991 Aug 1;40(2):211-3.
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