Dark spots on the face range from tiny flat freckles to larger patches of discoloration, and their appearance varies depending on what’s causing them. Most are harmless clusters of pigment triggered by sun exposure, hormones, or aging, but some have features worth paying attention to. Knowing what each type looks like helps you figure out what you’re dealing with.
Freckles
Freckles are the smallest and most familiar type of dark spot. They’re about 1 to 2 millimeters across (roughly the size of a pencil tip) with soft, irregular edges that blend into surrounding skin rather than forming a sharp boundary. Their color ranges from light tan to reddish-brown, and they tend to cluster on the cheeks, nose, and forehead.
The defining visual feature of freckles is that they change with the seasons. They darken noticeably in summer and fade during winter months. If you have spots that seem to appear and disappear with sun exposure, those are almost certainly freckles.
Age Spots (Sunspots)
Age spots, also called sunspots or solar lentigines, are flat oval areas of pigmentation that range from tan to dark brown. They’re larger than freckles, anywhere from freckle-sized up to about half an inch (13 millimeters) across, and they have clearly defined, sharp borders you can trace with your finger. Unlike freckles, their color stays the same year-round regardless of sun exposure.
These spots develop on skin that has accumulated years of UV damage, so they’re most common after age 40 and appear on the cheeks, forehead, temples, and backs of the hands. They’re completely flat against the skin with a uniform tan or brown color throughout. If you see a spot that’s raised, textured, or has multiple colors within it, that’s something different.
Melasma
Melasma looks distinctly different from individual spots. It appears as broad, blotchy patches rather than discrete dots, and the color can be light brown, dark brown, or even blue-gray. The patches often have an almost map-like quality, with irregular borders that spread across wider areas of the face.
The most recognizable feature of melasma is its symmetry. It tends to affect both sides of the face in matching patterns. The most common pattern, called centrofacial melasma, covers the forehead, cheeks, nose, and upper lip simultaneously. Another pattern affects both cheeks and the nose in a butterfly-like distribution. The upper lip is a particularly telling location: a shadow of brown discoloration above the lip that doesn’t correspond to any individual spot is a classic melasma sign. Hormonal changes from pregnancy or birth control are common triggers, which is why it’s sometimes called “the mask of pregnancy.”
Seborrheic Keratoses
These are the spots people often describe as looking “stuck on” the skin, like a drop of brown candle wax that hardened in place. Seborrheic keratoses are roundish or oval growths that range from light tan to nearly black. Even when they appear relatively flat, you can feel a slight raised texture when you run your finger over them.
What sets them apart visually from other dark spots is their surface texture. They often have a waxy, scaly, or slightly crumbly appearance. Some develop tiny bubble-like cysts within the growth. Others look rough and wart-like, or have ridged, brain-like surface patterns. They’re extremely common with age and completely benign, though they can look alarming when they’re dark or large. The key visual distinction: seborrheic keratoses have noticeable texture, while most concerning spots tend to be smooth.
Actinic Keratoses
Actinic keratoses often don’t look like typical “dark spots” at all. They’re rough, dry, scaly patches usually less than an inch across, and their color leans more toward pink, red, or light brown rather than the deeper browns of age spots. Many people feel them before they see them. The texture is often compared to sandpaper: a gritty, rough patch on the forehead, cheek, or nose that doesn’t go away.
These matter because they’re considered precancerous. They develop on sun-damaged skin and have a small but real chance of progressing over time. If you notice a persistent rough patch that doesn’t smooth out on its own after a few weeks, it’s worth having it checked.
Blue-Gray Spots
Some facial dark spots have an unusual blue-gray or slate-brown color rather than the typical tan or brown. This happens when pigment sits deeper in the skin, in the dermis rather than the surface layer. A condition called Hori’s nevus produces speckled blue-gray spots on both cheeks, typically developing in adulthood rather than being present from birth. These deeper pigment deposits look quite different from surface-level brown spots and can sometimes be mistaken for melasma, though their color is more distinctly blue or gray.
Post-Inflammatory Dark Spots
If you’ve had acne, a rash, a burn, or any kind of skin injury on your face, the flat discolored marks left behind are post-inflammatory hyperpigmentation. These spots match the shape and location of the original injury. After a pimple, for instance, you’ll see a flat brown, pink, or purplish mark exactly where the blemish was. They’re not scars (which involve texture changes) but rather leftover pigment deposits.
These spots are flat, smooth, and uniform in color. They fade gradually over weeks to months, though sun exposure can make them linger much longer. On lighter skin tones, they often appear pink or red. On darker skin tones, they tend to be brown or dark brown.
Signs a Spot Needs Evaluation
The ABCDE framework, developed for identifying melanoma, gives you a practical checklist for any spot that concerns you. Look for asymmetry, where one half of the spot doesn’t mirror the other. Check the border for ragged, scalloped, or blurred edges where pigment seems to spread into surrounding skin. Examine the color: multiple shades of brown, black, tan, or unexpected colors like white, red, pink, or blue within a single spot are a red flag. Most melanomas are larger than 6 millimeters (about the size of a pencil eraser) when diagnosed, though they can be smaller. The most important criterion is evolving: any spot that’s changing in size, shape, or color over weeks or months deserves attention.
A benign age spot is flat, evenly colored, stable, and has clean borders. A spot that breaks any of those rules, especially one that’s actively changing, looks different from every other spot on your face, or has started bleeding or itching, is worth showing to a dermatologist.