Most red spots are harmless. A few aren't — and the ones that aren't can look almost identical to the ones that are. Here's how to tell them apart, and when to stop guessing.
Small bright red dots on the chest, trunk, and arms in adults over 30 are most often cherry angiomas — benign clusters of tiny blood vessels. Other common causes include spider angiomas, petechiae, angiokeratomas, and pyogenic granulomas. Two simple tests help narrow it down: does it blanch when pressed, and is it raised or flat. Any red lesion that is growing, changing, bleeding without injury, or looks different from your others should be examined before it's treated cosmetically.
Before names and diagnoses, two observations narrow the field faster than anything else. You can do both in about ten seconds.
The blanch test. Press firmly on the spot with a fingertip or press a clear glass against it. Does the redness disappear and then refill?
Raised or flat. Run a fingertip over it with your eyes closed. Raised dome-shaped lesions behave differently from flat spots, and the distinction separates cherry angiomas from petechiae and from flat pigmented marks.
Neither test is diagnostic on its own. Together they sort most red spots into the right family, which is where the rest of this page picks up.
By far the most common. A small, bright red, dome-shaped bump made of an abnormal cluster of tiny blood vessels. They range from about half a millimeter to six millimeters and appear most often on the chest, trunk, and arms — though they can develop anywhere including the scalp.
They increase in number from around age 30 onward and occur in the majority of adults past that point. They run in families. They're not caused by sun exposure or anything you did, and the underlying cause isn't well understood. They're benign and have no relationship to cancer.
A central red point with fine vessels radiating outward like spider legs. The giveaway is the blanch pattern — press the center and the whole thing empties, then refills outward from the middle when released.
Common in pregnancy and often resolving after delivery. Also common in children. When numerous in an adult, particularly on the upper trunk, spider angiomas can be associated with liver conditions — which is why identifying them correctly matters more than the appearance suggests.
Several new spider angiomas appearing in an adult, especially alongside other changes, is worth mentioning to your primary care physician rather than treating cosmetically first.
Flat pinpoint red or purple spots caused by blood leaking out of capillaries into surrounding tissue. Petechiae are small; purpura are larger patches of the same process. The defining feature is that they do not blanch — the blood is outside the vessels, so pressure can't push it away.
They often appear suddenly and in clusters rather than one at a time. Minor causes include straining, coughing, vomiting, or tight clothing. But petechiae can also indicate a platelet or clotting problem, a medication effect, or infection.
Sudden widespread petechiae, particularly with fever, unusual bruising, or feeling unwell, warrants prompt medical evaluation rather than a cosmetic consultation.
Related to cherry angiomas but with a rougher, scaly, sometimes warty surface. Often darker — deep red, purple, or nearly black — which leads people to worry about melanoma. They commonly appear on the scrotum, vulva, or legs, and can bleed if traumatized.
The rough surface is the distinguishing feature, and it also changes treatment considerations compared with a smooth angioma.
A rapidly growing red nodule, often appearing within weeks, that bleeds very easily — sometimes profusely and repeatedly from minor contact. Frequently develops at a site of minor injury. Common in pregnancy and in children.
The speed of growth is what separates it from a cherry angioma. Angiomas are stable; pyogenic granulomas appear and enlarge quickly. Because rapid growth and bleeding are also features of some malignancies, these should be evaluated rather than assumed benign.
Fine visible red or purple lines rather than distinct spots, most often across the nose and cheeks. Associated with sun damage, rosacea, and age. Not a bump — a thread.
These respond well to vascular laser and are frequently treated in the same session as cherry angiomas, since the same device and the same principle apply.
This is the part most articles about red spots leave out, and it's the reason this page exists.
Nodular basal cell carcinoma — the most common skin cancer — frequently presents as a pink or red dome-shaped bump that can look very much like a cherry angioma. Amelanotic melanoma is melanoma without pigment, appearing pink or red rather than brown or black, and it is one of the more commonly missed presentations precisely because it doesn't look like what people expect melanoma to look like.
Neither is common. But both are why a red lesion should be identified before it's lasered. Once a laser has destroyed the tissue, the diagnosis goes with it — and the patient walks out believing the problem was solved.
None of these mean something is wrong. They mean the lesion deserves a look before anyone points a laser at it.
Once a lesion is identified as benign and vascular, treatment is generally straightforward. A 1064nm Nd:YAG vascular laser delivers energy absorbed by hemoglobin inside the vessel, coagulating it so the lesion collapses and the body clears it. Because it targets blood rather than surface pigment, it works across a broad range of skin tones and doesn't ablate the skin above the lesion.
Alternatives include electrocautery, which destroys tissue with electric current and carries a recognized risk of pinpoint scarring, and shave excision, which is slower and leaves more of a mark but produces tissue that can be sent for pathology — the right choice when diagnosis matters more than cosmetic outcome.
Full detail on the laser approach, recovery, and what to expect is on the cherry angioma removal page. For brown spots and pigmented lesions rather than red ones, Pico laser is the relevant treatment — different target, different device.
People arrive having already diagnosed themselves off the internet, and most of the time they're right. The reason I still examine each spot is the small number of times they aren't — and by then, if it's been lasered somewhere else, there's nothing left to look at. Two minutes of looking is cheap insurance.
What are the small red dots on my skin?
The most common cause of small bright red dots, particularly on the chest, trunk, and arms in adults over 30, is cherry angiomas — benign clusters of tiny blood vessels. Other possibilities include spider angiomas, petechiae, angiokeratomas, and pyogenic granulomas. Most are harmless, but a red lesion should be identified before it is treated cosmetically, since some skin cancers can appear red rather than pigmented.
How do I tell the difference between a cherry angioma and something serious?
You often cannot tell reliably by appearance alone, which is why evaluation matters. Cherry angiomas are typically stable over time, uniform bright red, dome-shaped, and small. Warning signs that a red lesion needs assessment include recent rapid growth, change in size, color, or shape, spontaneous bleeding without injury, persistent itching, or an appearance that differs from other spots you have.
What is the difference between a cherry angioma and a spider angioma?
A cherry angioma is a solid, dome-shaped red bump made of clustered capillaries. A spider angioma has a central red point with fine vessels radiating outward like legs, and blanches when pressed, refilling from the center. Spider angiomas are common in pregnancy and can also be associated with liver conditions when numerous, which is why the distinction matters clinically.
What are petechiae and are they dangerous?
Petechiae are pinpoint flat red or purple spots caused by bleeding under the skin. Unlike angiomas, they do not blanch when pressed and they are flat rather than raised. They often appear suddenly in clusters. Petechiae can be caused by minor trauma or straining, but can also indicate a platelet or clotting problem or infection, and sudden widespread petechiae warrants prompt medical evaluation rather than cosmetic treatment.
Can skin cancer look like a red spot?
Yes. Nodular basal cell carcinoma can present as a pink or red dome-shaped bump that resembles a cherry angioma. Amelanotic melanoma is a melanoma without pigment and can appear pink or red rather than brown or black. This is the primary reason a red lesion should be examined by a physician before it is treated with a laser, since laser treatment destroys the tissue needed for diagnosis.
Why am I suddenly getting more red spots?
Cherry angiomas increase in number naturally from around age 30 onward and tend to run in families, so gradually developing more is normal. Sudden appearance of many red spots over days or weeks is different and should be evaluated, particularly if the spots are flat, do not blanch, or are accompanied by bruising or feeling unwell.
Do red spots on the skin go away on their own?
It depends what they are. Cherry angiomas are permanent unless treated. Petechiae from minor trauma usually resolve within days to weeks. Pyogenic granulomas may persist and often require removal. Spider angiomas that appear during pregnancy frequently resolve after delivery. Identifying the lesion determines whether waiting is reasonable.
How are red spots removed?
Vascular lesions such as cherry angiomas, spider angiomas, and broken capillaries are typically treated with a vascular laser that targets the blood inside the vessel, causing it to collapse. Other options include electrocautery, which carries a higher risk of pinpoint scarring, and shave excision, which is preferred when tissue needs to be sent for pathology.
Bring every spot you're wondering about. Dr. Mortazavi will tell you what each one is, which can be treated, and which shouldn't be lasered at all.
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