What is short anagen hair syndrome?Short anagen syndrome (SAS) is a disorder of the hair growth cycle.
Short anagen syndrome is clinically characterized by short fine hair since birth, poor hair growth and excessive shedding. The affected child does not require a hair-cut. Most of the cases are reported in Caucasian blond-haired girls. It is quite possible that the condition may be equally present in boys and go unnoticed due to their hair styles. Normally the condition is associated neither with systemic diseases nor with dermal conditions.
Cause of short anagen syndromeThe cause of SAS is shortened hair growth phase. The condition appears idiopathic. However as familial cases have been reported, it may be caused by autosomal dominant inheritance.
Reduced scalp hair growth, sparse hair, increased shedding, increase in telogen hair, decrease in ratio of anagen to telogen hair in hair pull test are some of the common symptoms.
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Hair pull test helps in the diagnosis of this condition. In a normal individual, ratio of anagen to telogen hair is 9:1.
There is no standard treatment option available. In some cases the condition appears to normalize during puberty. In some adults the condition was found to persist.
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1.Ingrid Herskovitz, Isabel Cristina Valente Duarte de Sousa, Jessica Simon, Antonella Tosti. Short Anagen Hair Syndrome. Int J Trichology. 2013 Jan-Mar; 5(1): 45–46.
2.Niteen V Dhepe, Ashok S Naik. Short Anagen Syndrome in an Indian Woman with its Impact on Quality-of-Life. Int J Trichology. 2012 Oct-Dec; 4(4): 271–272.
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Current topic on natural skin care: Short anagen hair syndrome causes and treatment.