Did your Dr. give you a fact sheet about your diagnosis? My Dad and both my brothers have/had them. They’re quite common part of aging and typically start in middle age. They’re totally benign and not a precursor or predictor of any cancers.
I found a good article for you if your Dr. didn’t provide one.
>>Seborrheic keratosis is a common benign (noncancerous) skin growth. It tends to appear in middle age and you may get more as you get older. Seborrheic keratoses are not pre-cancerous, but they can resemble other skin growths that are.<<
>>Most people will have at least one in their lifetime. They tend to appear in mid-adulthood and their frequency increases with age. They are harmless and don’t require treatment, but you can have them removed if they bother you.
Skin growths like seborrheic keratoses are sometimes also called epidermal tumors. That doesn’t mean they’re cancer, though. Technically, moles and warts are also epidermal tumors. That just means they are clusters of extra cells on the epiderma, the outer layer of the skin.<<
https://my.clevelandclinic.org/health/diseases/21721-seborrheic-keratosis