BASP-Classifi cation of Androgenetic Alopecia: Application Experience in Men

Introduction. Androgenetic alopecia is chronic progressive hair loss with pattern distribution. The
Hamilton – Norwood classifi cation is used to classify androgenetic alopecia in men. In 2007 a new
universal BASP – classifi cation for androgenetic alopecia in man and women was proposed.
The purpose of the investigation is to study the clinical presentation of androgenetic alopecia in
men according to BASP – classifi cation.
Materials and methods. The 212 men (dermatological patients) in age from 18 years and older
were examined. The patients with infl ammatory diseases of the scalp, who received the treatment
for stimulation of the hair growth, who had a fever or psychological stress before 6 months to
examination and those have thyroid diseases or anemia were excluded. The visual examination and
dermatoscopy for exclude infl ammatory diseases of the scalp were used. By severity, androgenetic
alopecia was classifi ed as mild: basic L, M0, M1, C1 and specifi c V1, F1 types; moderate: M2, C2 basic
and V2, F2 specifi c types and severe with basic M3, C3, U1, U2, U3 and specifi c types V3, F3. The early
onset of androgenetic alopecia was considered as starting before 30 years old.
Results. The average age of patients was 47.9±13.68 years. Patients under of 44 years old were 83
(39.1%), from 45 to 59 years old – 90 (42.4%), from 60 to 74 years old – 34 (16.0%), from 75 to 90 years
old – 4 (1.8%), over 90 years old – 1 (0.4%). The M-type isolated or in combination with other types
was in 159 (75%) patients, C-type isolated or in combination with other types was diagnosed in 36
(16.9%) patients, U-type isolated or in combination with other types was diagnosed in 28 (13.2%)
patients, V-type isolated or in combination with other types was diagnosed in 58 (27.3%) patients,
F-type isolated or in combination was observed in 6 (2.8%) patients.
The mild severity of various types of AGA were in 71 patients (33.4%), moderate severity of various
types of AGA is observed in 103 (48.5%) and 113 (53.3%) patients had severe forms of AGA. AGA
began before 30 years old in 22 (10.3%) patients.
Conclusion. The isolated or combined with other types M-type is the most common type of AGA.
The more patients are needed to determine the frequency of cases of types of AGA in the Belarusian
population in diff erent age groups according to BASP-classifi cation.
Due to the ease of application, it is possible that the new BASP-classifi cation may be used by doctors
other than dermatologist and nurse. It is promote interdisciplinary cooperation in terms of studying
AGA as a cosmetic problem or as an indicator of other diseases.