aa has a reported incidence of 0.1 - 0.2% with a lifetime risk of 1.7% . histologically , aa is characterized by the accumulation of mononuclear cells around the bulb of the affected hair follicles . corticosteroids are the most popular drugs for the treatment of this disease . despite its high prevalence , currently available treatments are mostly unsatisfactory and inefficient for the more chronic and severe types of the aa . alopecia areata is a well - known disorder in iranian traditional medicine ( itm ) . da oth - thalab  was the term used by itm scholars to indicate aa . traditional iranian physicians believed that the presence of morbid matter in the scalps is the main cause of the disease , which blocks nutrients and causes hair roots to deteriorate . herbal medicines in the form of topical preparations were applied by itm scholars for the treatment of aa . this study was performed to determine the most frequent useful herbs for aa as mentioned in itm . seven itm references such as canon of medicine ( avicenna ) , alhavi ( razes ) tuhfat ul - momineen ( momen tonekaboni ) , makhzan - ul - adwiah ( aghili ) , ikhtiyarat badi , i ( ansari ) , al - abnia an - haghyegh el - advia ( heravi ) and al - jmi li - mufradt al - adwiyawa al - aghdhiya ( ibn al - baitar ) were studied for anti - aa medicines . subsequent to our study , the herbal medicines were listed and scored based on the frequency of their prescriptibility . moreover , we took the effort to provide the best scientific name for each plant . this study showed that allium cepa l. , artemisia abrotonon l. , allium sativum l. , and asphodelus ramosus l. were the most frequent herbs mentioned in itm references for the recovery of aa . these herbs can be introduced as new herbal medicines for clinical research in the field of alopecia areata treatment .
background : alopecia areata ( aa ) is a common immune - mediated hair loss disorder . 
 aa has a reported incidence of 0.1 - 0.2% with a lifetime risk of 1.7% . 
 histologically , aa is characterized by the accumulation of mononuclear cells around the bulb of the affected hair follicles . 
 corticosteroids are the most popular drugs for the treatment of this disease . despite its high prevalence , 
 currently available treatments are mostly unsatisfactory and inefficient for the more chronic and severe types of the aa . 
 alopecia areata is a well - known disorder in iranian traditional medicine ( itm ) .  da oth - tha , lab  was the term used by itm scholars to indicate aa . 
 traditional iranian physicians believed that the presence of morbid matter in the scalps is the main cause of the disease , which blocks nutrients and causes hair roots to deteriorate . 
 herbal medicines in the form of topical preparations were applied by itm scholars for the treatment of aa . this study was performed to determine the most frequent useful herbs for aa as mentioned in itm.methods:seven itm references such as canon of medicine ( avicenna ) , alhavi ( razes ) tuhfat ul - momineen ( mo , men tonekaboni ) , makhzan - ul - adwiah ( aghili ) , ikhtiyarat badi , i ( ansari ) , al - abnia an - haghyegh el - advia ( heravi ) and al - jmi li - mufradt al - adwiyawa al - aghdhiya ( ibn al - baitar ) were studied for anti - aa medicines . 
 subsequent to our study , the herbal medicines were listed and scored based on the frequency of their prescriptibility . 
 moreover , we took the effort to provide the best scientific name for each plant.results:this study showed that allium cepa l. , artemisia abrotonon l. , allium sativum l. , and asphodelus ramosus l. were the most frequent herbs mentioned in itm references for the recovery of aa.conclusion:these herbs can be introduced as new herbal medicines for clinical research in the field of alopecia areata treatment .