Weathering of Hair in Hereditary Hair Abnormalities
Scanning electron microscopic studies have considerably enhanced our knowledge of newly-formed hair, and have shown that from root to tip the shaft degenerates progressively (‘weathering’) due to such factors as brushing, combing, ultra-violet radiation and a variety of cosmetic procedures (Dawber and Comaish 1970, Swift and Brown 1972, Robinson 1976, Garcia et al. 1978). It has also been clearly demonstrated that Trichorrhexis nodosa is simply the severest form of weathering usually due to excessive cosmetic treatment (Chernosky 1974). Severe weathering may occur in hereditary dystrophies in which no cosmetic treatment has been carried out or in association with procedures that are generally harmless to hair, e.g. shampooing. Previous preliminary qualitative studies have shown that breakdown of hair in many hereditary abnormalities is in many respects specific to that dystrophy and different from ‘normal’ weathering (Dawber 1977, Dawber 1978).
KeywordsWeathering Dermatol Monilethrix
Unable to display preview. Download preview PDF.
- Chernosky ME (1974) Acquired trichorrhexis nodosa. In: Brown AC (ed) The first human hair symposium. Medcom, New York, p 36–49Google Scholar
- Dawber RPR (1972) Investigations of a family with pili annulati associated with blue naevi. Trans St John’s Hosp Derm Soc 58:51–58Google Scholar
- Dawber RPR (1978) In: The 2nd Human Hair Symposium, AtlantaGoogle Scholar
- Garcia ML, Epps JH, Yare RS (1978) Normal cuticle-wear patterns in human hair. J Soc Cosm Chem 29:155–176Google Scholar
- Robinson VNE (1976) A study of damaged hair. J Soc Cosm Chem 27:155–161Google Scholar
- Swift JA, Brown AC (1972) The critical determination of fine changes in the surface architecture of human hair due to cosmetic treatment. J Soc Cosm Chem 23:695–702Google Scholar