I have had numerous skin cancers- basal cell, too many to count, one squamous, and one serious Melanoma many years ago. The Melanoma left major scars, one that looked like a shark bite, the rest were from skin grafts sites & removal of lymph nodes.
The facial basal cells were removed by Moh's surgeries and also left scars. The ones on my leg, the same. The ones on my leg hurt every now & then. These
skin cancers are slow growing, and usually do not metasticize. If left for too long, you will have to have more extensive skin removed, and that will leave larger scars & longer healing time.

I have also had other cancers that were serious & required long surgeries & hospital stays & have had many lasting effects on my health.
All these varied cancers are no doubt the result of an errant gene. I have only had one gene study done, and will not have others as I am quite tired of doctors and procedures, and surgeries and pain and scars!
Please do not freak out about your skin cancers-- just find a good dermatologist, and have a check-up every year.