Trichorrhexis nodosa: Difference between revisions
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{{Infobox |
{{Infobox medical condition (new) |
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| name = Trichorrhexis nodosa |
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| synonyms = Hair shaft fracture<ref>{{cite web |title=Trichorrhexis nodosa: MedlinePlus Medical Encyclopedia |url=https://medlineplus.gov/ency/article/001449.htm |website=medlineplus.gov |accessdate=27 April 2019 |language=en}}</ref> |
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| Image = Tricho-hepato-enteric syndrome (1).jpg |
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| image = Tricho-hepato-enteric syndrome (1).jpg |
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| caption = [[Tricho-hepato-enteric syndrome]]: Microscopic analysis of the hair shaft showing breaks located at nodes in the hair (trichorrhexis nodosa) and longitudinal breaks. |
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| field = [[Dermatology]] |
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'''Trichorrhexis nodosa''' is a defect in the [[hair]] shaft characterized by thickening or weak points (nodes) that cause the hair to break off easily.<ref name= |
'''Trichorrhexis nodosa''' is a defect in the [[hair]] shaft characterized by thickening or weak points (nodes) that cause the hair to break off easily.<ref name=Andrew2020>{{cite book |last1=James |first1=William D. |last2=Elston |first2=Dirk |last3=Treat |first3=James R. |last4=Rosenbach |first4=Misha A. |last5=Neuhaus |first5=Isaac |title=Andrews' Diseases of the Skin: Clinical Dermatology |date=2020 |publisher=Elsevier |location=Edinburgh |isbn=978-0-323-54753-6 |page=764 |edition=13th |chapter-url=https://books.google.com/books?id=UEaEDwAAQBAJ&pg=PA764 |language=en |chapter=33. Diseases of the skin appendages }}</ref><ref name="Fitz2">Freedberg, et al. (2003). ''Fitzpatrick's Dermatology in General Medicine''. (6th ed.). McGraw-Hill. {{ISBN|0-07-138076-0}}.</ref>{{rp|636}} This group of conditions contributes to the appearance of [[hair loss]], lack of growth, and damaged-looking hair. |
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==Symptoms== |
==Symptoms== |
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Among the symptoms (and signs) for this condition are the following: |
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* lack of apparent hair growth |
* lack of apparent hair growth |
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* hair appears patchy |
* hair appears patchy |
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* whitish discoloration of hair tips |
* whitish discoloration of hair tips |
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* hair breaks easily at tips |
* hair breaks easily at tips |
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==Causes== |
==Causes== |
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==Diagnosis== |
==Diagnosis== |
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Examination of the hair shafts with a microscope may reveal changes of trichorrhexis nodosa. |
Examination of the hair shafts with a microscope may reveal changes of trichorrhexis nodosa. |
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==Prevention== |
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==Treatment== |
==Treatment== |
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Improving environmental factors will reduce damage to the hair. Gentle brushing with a soft brush should replace more aggressive brushing, ratting, or other procedures. Harsh chemicals such as [[hair straightening]] compounds and permanents should be avoided. The hair should not be ironed. Excessively harsh [[shampoo]] should be avoided. [[Hair conditioners]] should be used. |
Improving environmental factors will reduce damage to the hair. Gentle brushing with a soft brush should replace more aggressive brushing, ratting, or other procedures. Harsh chemicals such as [[hair straightening]] compounds and permanents should be avoided. The hair should not be ironed. Excessively harsh [[shampoo]] should be avoided. [[Hair conditioners]] should be used.{{citation needed|date=April 2017}} |
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==Prognosis== |
==Prognosis== |
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This condition is self-limiting. Improvements in grooming techniques and in environmental conditions will correct the abnormality. |
This condition is self-limiting. Improvements in grooming techniques and in environmental conditions will correct the abnormality. |
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== See also == |
== See also == |
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* [[List of cutaneous conditions]] |
* [[List of cutaneous conditions]] |
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==References== |
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==Notes== |
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{{reflist}} |
{{reflist}} |
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== External links == |
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==References== |
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{{Medical resources |
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* {{MedlinePlusEncyclopedia|001449|Trichorrhexis nodosa}} |
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| DiseasesDB = 29680 |
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| ICD10 = {{ICD10|L|67|0|l|60}} |
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| ICD9 = {{ICD9|704.2}} |
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| ICDO = |
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| OMIM = |
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| MedlinePlus = 001449 |
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}} |
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{{Disorders of skin appendages}} |
{{Disorders of skin appendages}} |
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[[Category:Conditions of the skin appendages]] |
[[Category:Conditions of the skin appendages]] |
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[[Category:Hair diseases]] |
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Latest revision as of 14:49, 30 June 2024
| Trichorrhexis nodosa | |
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| Other names | Hair shaft fracture[1] |
.jpg) | |
| Tricho-hepato-enteric syndrome: Microscopic analysis of the hair shaft showing breaks located at nodes in the hair (trichorrhexis nodosa) and longitudinal breaks. | |
| Specialty | Dermatology |
Trichorrhexis nodosa is a defect in the hair shaft characterized by thickening or weak points (nodes) that cause the hair to break off easily.[2][3]: 636 This group of conditions contributes to the appearance of hair loss, lack of growth, and damaged-looking hair.
Symptoms
[edit]Among the symptoms (and signs) for this condition are the following:
- lack of apparent hair growth
- hair appears patchy
- hair breaks easily close to scalp
- hair may have thickenings or nodes in the shaft
- ends of hair thinned or split
- whitish discoloration of hair tips
- hair breaks easily at tips
Complications
[edit]This condition is not dangerous but may affect self-esteem.
Causes
[edit]Trichorrhexis may have a genetic basis but appears to be precipitated by environmental factors. Among Caucasians the defect often appears at the ends of the hair shaft with splitting of the ends, thinning and whitish discoloration.
These conditions are directly related to environmental causes such as "perming", blow drying, aggressive hair brushing, and excessive chemical exposure.
In some cases, trichorrhexis nodosa may be caused by an underlying disorder such as argininosuccinic aciduria, Menkes' kinky hair syndrome, Netherton's syndrome, hypothyroidism, or trichothiodystrophy.
Diagnosis
[edit]Examination of the hair shafts with a microscope may reveal changes of trichorrhexis nodosa.
Prevention
[edit]Avoid aggressive brushing and grooming, strong chemicals, permanents, straightening, and similar hair-damaging habits.
Treatment
[edit]Improving environmental factors will reduce damage to the hair. Gentle brushing with a soft brush should replace more aggressive brushing, ratting, or other procedures. Harsh chemicals such as hair straightening compounds and permanents should be avoided. The hair should not be ironed. Excessively harsh shampoo should be avoided. Hair conditioners should be used.[citation needed]
Prognosis
[edit]This condition is self-limiting. Improvements in grooming techniques and in environmental conditions will correct the abnormality.
See also
[edit]References
[edit]- ^ "Trichorrhexis nodosa: MedlinePlus Medical Encyclopedia". medlineplus.gov. Retrieved 27 April 2019.
- ^ James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "33. Diseases of the skin appendages". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. p. 764. ISBN 978-0-323-54753-6.
- ^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.