RT Book, Section
A1 Issa, Naiem
A1 Tosti, Antonella
A2 Tosti, Antonella
A2 Piraccini, Bianca Maria
SR Print(0)
ID 1201699468
T1 Ethnic Hair Disorders
T2 Disorders of the Hair and Nail: Diagnosis and Treatment
YR 2023
FD 2023
PB McGraw Hill
PP New York, NY
SN 9781260462470
LK dermatology.mhmedical.com/content.aspx?aid=1201699468
RD 2023/12/09
AB SUMMARYAfrican  hair  has  unique  morphology  where  the  hair  follicle  is  curved/twisted  with  variable  shaft  diameter  rather  than  straight  with  consistent  diameter  as  found  in  Asians  and  Caucasians.  African  hair  also  has  low  lipid  content.  This  renders  the  hair  more  brittle  and  susceptible  to  hair  breakage.Hairstyles  play  an  important  role  for  many  hair  disorders  in  patients  of  African  descent.  Traumatic  practices  such  as  hot  combing,  chemical  relaxers  and  dyes  lead  to  acquired  trichorrhexis  nodosa  (hair  breakage)  while  tension-producing  hair  styles  such  as  braids  and  weaves  lead  to  traction  alopecia.The  helical  nature  of  African  hair  can  lead  to  ingrown  hairs  that  penetrate  back  into  the  skin,  causing  inflammatory  papules,  pustules,  and  nodules  found  in  pseudofolliculitis  barbae  in  the  beard  or  acne  keloidalis  nuchae  in  the  occipital  scalp.Central  centrifugal  cicatricial  alopecia  (CCCA)  and  dissecting  cellulitis  are  primary  inflammatory  cicatricial  hair  disorders  with  higher  prevalence  in  patients  of  African  descents.