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Most flat brown spots on sun-exposed skin are harmless solar lentigines, but a small subset are early melanomas that look almost identical. Here is how clinicians tell them apart, and why that matters before any laser, peel, or cream touches your skin.
July 26, 2026 · Marisol Etcheverry
Roughly one in five cases of acquired hyperpigmentation is drug-induced, and the drugs responsible are ordinary ones. Here is a bathroom-counter audit that sorts a sun spot from a medication stain before you spend money lasering the wrong thing.
July 25, 2026 · Declan Whitcombe
Rebound pigment after laser treatment is common, predictable, and usually temporary. Understanding the two very different reasons a spot can reappear helps you respond correctly instead of panicking or re-treating too soon.
July 25, 2026 · Ramona Achterberg
Every story we have filed
31 stories on file
ExplainerLiver spots have nothing to do with the liver and are not simply a symptom of getting older. They are a running tally of ultraviolet dose, and the clusters on your hands and face can be predicted from how you drove, worked and parted your hair decades ago.
· Marisol Etcheverry
ExplainerAsk three authoritative sources what an age spot is and you get three answers that quietly contradict each other. One says extra pigment, one says extra pigment cells, one says a remodeled patch of skin. Which one you believe changes what you should do about it.
· Marisol Etcheverry
ExplainerSolar lentigines are not melasma. The pigment sits differently, behaves differently, and responds to a different toolkit. Here is the mechanism-level explanation most product marketing skips.
· Marisol Etcheverry
Field NotesNobody in a consultation room asks which side of the car you sit on, yet the answer often explains why the spots on one temple arrived a decade before the ones on the other. A five minute paired comparison at your own bathroom mirror tells you whether your pigment is coming from beach days or from the commute.
· Declan Whitcombe
ExplainerThe brown and red mottling on most sun exposed necks is not a cluster of age spots, and the giveaway is a patch of skin under the chin that never sees direct sun. If that patch is clean while everything around it is not, almost nothing sold for age spots will touch what you have.
· Marisol Etcheverry
ExplainerPost-laser darkening alarms many patients into thinking the treatment failed. In most cases it is the clearest sign the treatment worked. Here is what is actually happening in the skin, day by day.
· Marisol Etcheverry
§ 04 · Frequently Asked
Most are benign, but a new or changing dark spot in adulthood should always be evaluated by a dermatologist. Melanoma can present as a darker, irregular spot that resembles an age spot at a glance.
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