A paper published in Europe had this to say about this subject:
"The classification of rosacea into stages or subtypes, without considering the possibility of progression from one to another, will probably remain controversial until additional knowledge on the pathophysiology of rosacea is obtained."
Clinical presentations and classification of rosacea.
Jansen T.
Department of Dermatology, Venereology and Allergology, University of Duisburg-Essen, Hufelandstrasse 55, 45122 Essen, Germany.
Ann Dermatol Venereol. 2011 Nov;138 Suppl 3:S192-200.
Dr. Jansen is a member of the RRDi MAC.
For more info:
"The classification of rosacea into stages or subtypes, without considering the possibility of progression from one to another, will probably remain controversial until additional knowledge on the pathophysiology of rosacea is obtained."
Clinical presentations and classification of rosacea.
Jansen T.
Department of Dermatology, Venereology and Allergology, University of Duisburg-Essen, Hufelandstrasse 55, 45122 Essen, Germany.
Ann Dermatol Venereol. 2011 Nov;138 Suppl 3:S192-200.
Dr. Jansen is a member of the RRDi MAC.
For more info: