Short Anagen Syndrome

June 2010 in “ Pediatric dermatology ”

Federica Giacomini, Michela Starace, Antonella Tosti

short anagen syndrome anagen phase scalp hair loose anagen hair syndrome SAS LAS

Studysummary This review discusses short anagen syndrome, highlighting its symptom of abnormally short scalp hair without associated systemic diseases, and notes that hair length often improves spontaneously after puberty without treatment.

Our plain-language summary. Not medical advice or a treatment recommendation. Consult a qualified healthcare professional before changing treatment. Full disclaimer

Short anagen syndrome (SAS) was a rarely reported condition characterized by an idiopathic short anagen phase, resulting in the inability to grow long hair. Patients typically had abnormally short scalp hair and reported never having had a haircut. The condition was benign, with no associated systemic diseases or skin disorders, and hair length often improved spontaneously after puberty. The main differential diagnosis was loose anagen hair syndrome (LAS).

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Research cited in this study

5 / 5 results

research The Genetics of Hair Shaft Disorders

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research Videodermoscopy in the Evaluation of Hair and Scalp Disorders

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This study found that videodermoscopy enhances diagnostic accuracy for scalp and hair disorders beyond simple clinical inspection and reveals novel disease features that could improve clinical understanding.

research Short Anagen Syndrome

37 citations , July 2005 in “Journal of The American Academy of Dermatology”

This article reviews the clinicopathologic features of short anagen syndrome in a child and suggests diagnostic methods like clinical examination and scalp hair growth rate measurement, without reporting new clinical results.

research Short Anagen Hair With Persistent Synchronized Pattern of Scalp Hair Growth

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This study describes a 4-year-old boy who exhibits a rare, synchronized pattern of hair growth and shedding, unlike the typical asynchronous pattern seen in humans.

research Congenital Hypotrichosis Due to Short Anagen Phase

42 citations , September 2000 in “British Journal of Dermatology”

This report describes two children with congenital hypotrichosis and found their short hair is due to a shortened anagen phase, with the condition resolving spontaneously during puberty.