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What a cherry angioma actually is
A cherry angioma — sometimes called a ruby angioma, cherry hemangioma, or simply a red mole — is a small vascular growth. Rather than pigment cells, it is built from capillaries that have widened and grouped together, which is why it reads as bright red, cherry, or occasionally deep purple.
They are usually between one and five millimetres across. Some sit flat against the skin; others are slightly domed and catch on clothing or a razor. They are most common on the trunk, chest, shoulders and upper arms, and they are painless.
Cherry angiomas are benign. They are not a form of skin cancer and they do not become one.
What makes them worth addressing is not risk — it is visibility. Because they cluster, ten small spots across the décolleté read from across a room as a change in the skin itself.