Only 1 study (meta-analysis) examined the percentage of malignant transformation and found a rate between 0.025% and 20% per year/ National Institutes of Health (.gov) Seborrheic keratosis - Symptoms & causes - Mayo Clinic
Often appearing on the face, chest, or back, these are known for their distinctive "stuck-on" look. keratosis
The most useful features for identifying keratosis depend on the specific type you are looking at, as they vary from benign "age spots" to precancerous sun damage. Seborrheic Keratosis (Common Benign Growth) Only 1 study (meta-analysis) examined the percentage of
These usually occur on sun-exposed areas like the scalp, face, or hands. : They look like they were dripped onto
: They look like they were dripped onto the skin like candle wax and could be easily scraped off. Waxy/Greasy Texture : Surface often feels waxy or scaly.