They range in color from white to black most are tan or brown.Seborrheic keratosis is a common skin growth. These growths often appear in middle-aged and older adults. Some people get just one. It is, however, more common to have many. It may look worrisome, but it is benign.They are not contagious. Most often seborrheic keratoses start as small, rough bumps. Then slowly they thicken and get a warty surface.
Average age of patients suffering from lesions with and without associated malignancy was 57 and 54 years,the approximate rate is highest with a prevalence of around 50% and the rate is estimated to be between 22.5% and 46% Seborrheic keratoseson exposed areas were more often flat and more than 3 mm in diameter than those on the non-exposed areas.
Seborrheic keratoses are often described as having a pasted on appearance. Some dermatologists refer to seborrheic keratoses as seborrheic warts these lesions, however, are usually not associated with HPV,and therefore such nomenclature is discouraged.