I had two earlier this year and two more this week and two more next week. The stitches are not a problem but the healing and scar dissipation takes a long time. I have not found an answer to the problem of what causes the squamous cells to appear in the first place. I understand the sun exposure but these cells just appear and usually after I have cut the skin like walking into the corner of the dishwasher or rock scrapes from hiking. TY for asking!