KEY TAKEAWAY Mole mapping is a digital skin surveillance process that photographs and catalogues every mole and lesion on your body, creating a detailed baseline record. At follow-up appointments, new images are compared directly against this baseline to detect any new moles or subtle changes in existing ones, changes that are often too gradual to notice through memory or occasional self-checks alone.  You've probably had a regular skin check where the doctor looks over your moles by eye, and separately heard about mole mapping as something more advanced without a clear sense of what actually makes it different. The distinction