The invention relates to a method for quantifying at least one parameter representative of a subepidermal hypoechogenic band using an ultrasound probeprovided with at least one ultrasound transducer, said method comprising in particular a step of obtaining an echogenicity profile of the imaged cutaneous tissue and of quantifying said at least one parameter representative of a subepidermal hypoechogenic band, said quantifying being carried out via said echogenicity profile.