Cherry angiomas are not inherited in a straightforward way like eye color or blood type, but genetics does play a role. These small, bright-red skin spots arise from somatic mutations, meaning changes that happen in individual cells during your lifetime rather than being passed down from a parent. That said, some people are clearly more prone to developing them than others, and family patterns do exist.
What Happens Inside the Cells
Researchers have identified specific mutations in two genes, GNAQ and GNA11, within cherry angioma tissue. These genes help regulate how blood vessel cells grow and divide. When a mutation occurs in one of these genes inside a single cell, it can trigger the formation of a small cluster of extra blood vessels near the skin’s surface, producing the characteristic red dome.
The key distinction is that these are somatic mutations, not germline mutations. A germline mutation exists in every cell of your body from birth and can be passed to your children. A somatic mutation happens spontaneously in one cell at some point during life, often due to aging, UV exposure, or other environmental factors. You won’t find the GNAQ or GNA11 changes in cherry angiomas elsewhere in the person’s body. Each angioma develops independently from its own localized mutation event.
Why They Seem to Run in Families
Many people notice that their parents or siblings also have cherry angiomas, and that observation is real. While no single “cherry angioma gene” gets inherited, your baseline skin characteristics, vascular biology, and how efficiently your cells repair DNA damage are all influenced by your genetic background. If your family tends toward skin that’s more susceptible to these somatic mutations, you’ll likely develop more cherry angiomas and develop them earlier. Think of it like sun damage: everyone is exposed to UV light, but some people’s inherited skin type makes them more vulnerable to the effects.
Age Is the Biggest Factor
Regardless of genetics, aging is the dominant driver. Cherry angiomas appear in about 7% of adolescents but affect roughly 75% of adults over age 75. Most people first notice them in their 30s or 40s. Between 5% and 41% of people develop their first one during their 20s. They typically start at about 1 mm across and may grow to around 2 to 3 mm by age 50, though they rarely exceed 3.5 mm. The older you get, the more somatic mutations accumulate in your cells, which is why new spots keep appearing over the decades.
Chemical and Hormonal Triggers
Beyond age and genetic susceptibility, certain exposures can trigger cherry angiomas or cause them to erupt in large numbers. Bromide-containing compounds have been linked to widespread angioma development. Workers in industrial settings exposed to bromides developed diffuse cherry angiomas across their trunks and limbs, and patients using an inhaled bromide-based asthma medication have shown similar patterns. Other chemical triggers include sulfur mustard gas and a solvent called 2-butoxyethanol, a glycol ether found in some cleaning products.
Hormonal shifts, particularly increases in estrogen during pregnancy, are also thought to promote their development, though the evidence for this link is less robust than for chemical exposures.
When a Sudden Burst of Them Matters
A handful of cherry angiomas appearing gradually over years is completely normal. But a sudden eruption of many new ones, especially before age 70, may warrant attention. A study of 587 people with eruptive cherry angiomas found a significant association with melanoma. The strength of that link was comparable to having multiple atypical moles, which is an established melanoma risk marker. This doesn’t mean cherry angiomas cause melanoma or that having them should alarm you. It suggests that in some cases, the same immune and vascular factors that drive rapid angioma formation may overlap with processes involved in skin cancer development.
Telling Them Apart From Something Serious
Cherry angiomas can occasionally resemble more concerning growths, particularly amelanotic melanoma (a form of skin cancer that lacks the dark pigment people usually associate with melanoma) or nodular basal cell carcinoma. A cherry angioma is stable in size over months, evenly colored throughout, and flat or only slightly raised rather than truly nodular. Under magnification, it shows a clear pattern of separated vascular segments. If a red spot is growing noticeably, has uneven coloring, or feels firm and raised, it deserves a closer look from a dermatologist.
Removal Options
Cherry angiomas are harmless and don’t require treatment, but many people choose to have them removed for cosmetic reasons. The two most common methods are electrosurgery, which uses a high-frequency electrical current to cauterize the tiny blood vessels, and cryotherapy, which freezes the spot so it dries up and falls off.
In a clinical trial comparing the two, electrosurgery came out ahead for cherry angiomas. After four sessions, 75% of patients in the electrosurgery group reported excellent satisfaction compared to 37.5% in the cryotherapy group. Physician satisfaction showed a similar gap: 87.5% versus 43.8%. Both methods carry a small risk of minor side effects like lightened skin at the treatment site or, with electrosurgery, subtle scarring. For very small angiomas, the two approaches performed about equally well. Laser treatment is another option, working on a similar principle of sealing off the blood supply to the spot.
Removed cherry angiomas generally don’t grow back in the same location, but new ones will continue to appear elsewhere over time, since the underlying tendency to develop somatic mutations in blood vessel cells doesn’t change.