Lentigo develops when certain skin cells produce extra melanin, usually after years of UV exposure from the sun or tanning beds. Age, fair skin, hormones, genetics, and sometimes previous skin damage or radiation also play a role. In younger people, lentigo is less common and can be linked to hormonal or metabolic issues. Often, several factors add up rather than one single cause.
Simple lentigo itself has a very low risk of turning into melanoma, similar to normal skin. The main risk is missing an early melanoma or lentigo maligna that looks like a harmless sun spot. Extra UV exposure, chronic irritation, and older age increase overall skin cancer risk. Regular self‑checks, our AI skin analysis, and periodic dermatologist visits help keep that risk under control.
Most lentigines don’t need treatment unless you dislike how they look or the spot is in a high‑risk area that gets constant friction. Options include surgical removal for single lesions and cosmetic methods like lasers, chemical peels, or light‑based treatments for multiple spots. Any destructive procedure should only be done after a dermatologist or oncologist has examined the lesion, ideally with dermatoscopy or biopsy if needed. After removal, the area should be monitored for any new or recurring pigment, using photos or our AI skin analysis.